quattuorquadragintillion

five trequinquagintillion, nine hundred fifty eight doquinquagintillion, nine hundred thirty five unquinquagintillion, nine hundred eighty quinquagintillion, three hundred sixty two novemquadragintillion, six hundred forty five octoquadragintillion, eight hundred twenty five septenquadragintillion, one hundred sixteen sexquadragintillion, one hundred five quinquadragintillion, nine hundred forty nine quattuorquadragintillion, forty seven trequadragintillion

1999 August 30, Clive Tooth, “Could anyone tell me how to say this number?”, in sci.math (Usenet), archived from the original on 30 Dec 2025

$39.559 billion. $231.374 duoquadragintillion. $406.453 novemdecillion. $4.39 quattuorquadragintillion. All of these are numbers I encounter on a daily basis, thanks to my habit of leaving AdVenture Capitalist [official site] running in the background, but a few days ago they suddenly prompted me to actually think about the numbers and their names rather than letting them drift past, sextillions expanding into septillions, into octillions, nonillions and beyond - far beyond anything we encounter in real life.

2016 September 20, Philippa Warr, “AdVenture Capitalist: I Like Big Numbers & I Cannot Lie”, in Rock Paper Shotgun, London: Gamer Network, archived from the original on 23 Apr 2021

Now, I hope my math before was correct, simply because were it to be wrong, at best it would be hilariously amateur, and at worst, enough to anger whatever malicious banana deity that may exist. Also, if I butcher the numbers now, our black hole's banana mass will be miscalculated on the order of quattuorquadragintillions, and I don't want to be that guy.

2018 February 25, SweepTheLegsJohnny, “Black Holes, so hot right now (Banana for scale edition)”, in Imgur, archived from the original on 30 Dec 2025