septendecillion

S1E1P3T1E1N1D2E1C3I1L1L1I1O1N1
/ˌsɛptəndəˈsɪl.i.ən/

numeral

10⁵⁴.

Similar
105410102
Scrabble 20
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

numeralseptendecillion (plural septendecillions)

plural septendecillions

  1. AustraliaUKUSmodernrareshort scale10⁵⁴.

    The names of the periods above trillion are as follows [...] 19th, septendecillion [...]

    1896, Frank H. Hall, The Werner Arithmetic, Oral and Written, Book Two, Parts I and II
    2 more examples

    STV by the Numbers: [...] 3000^16 (roughly 43 septendecillion) : number of possible voting permutations if 3,000 students vote (Single Transferable Voting is pretty complicated!).

    2003, Bits and Bytes - New voting system demystified

    One Septendecillion Years From Now [...] The total mass of the universe [will be] somewhere between 200 and 500 septendecillion grams.

    2003, Magic Dragon Multimedia, Timeline Cosmic Future

    Synonyms: 1054

  2. AustraliaUKdatedrarelong scale10¹⁰².

Synonyms & antonyms

numeral10⁵⁴.

Similar
1054

a short scale tretrigintillion

Similar
10102

Origin

From Latin septendec(im) (“seventeen”) + -illion; compare tredecillion, quattuordecillion, etc. By surface analysis, septen- + decillion.

Full word history & related roots →

Translations

Dutch septendeciljoen
  • septendeciljoen10102 — see also tretrigintillion
Esperanto naŭiliono
  • naŭiliono1054 — see also nonillion
Finnish noniljoona, septendekiljoona
  • noniljoona1054 — see also nonillion
  • septendekiljoona10102 — see also tretrigintillion
French septendécillion
  • septendécillion10102 — see also tretrigintillion
German Nonillion, Septendezillion
  • Nonillion1054 — see also nonillion
  • Septendezillion10102 — see also tretrigintillion
Hungarian nonillió
  • nonillió1054 — see also nonillion
Japanese 百恒河沙
  • 百恒河沙 (hyakugōgasha)1054 — see also nonillion
Malay septendesilion
  • septendesilion1054 — see also nonillion
Polish milion oktylionów, nonilion
  • milion oktylionów1054 — see also nonillion
  • nonilion1054 — see also nonillion
  • septendecylion10102 — see also tretrigintillion
Russian септендециллион, септемдециллион
  • септендециллион (septendecillion)1054 — see also nonillion
  • септемдециллион (septemdecillion)1054 — see also nonillion
  • третригинтиллион (tretrigintillion)10102 — see also tretrigintillion

Rhymes & wordplay

Rhymes with septendecillion

millionbillionBrazilianpaviliontrilliongillianzillionvermilionJillianabelianMaximilianCastiliangazillionquadrillionpillionquintillionjillioncentilliondecillionduodecillionduotrigintillionduovigintilliongilliongodzillion
All rhymes →
Cite this entry
APA

septendecillion. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/septendecillion

MLA

“septendecillion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/septendecillion. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “septendecillion,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/septendecillion.

Source: septendecillion on Wiktionary, CC BY-SA 4.0.