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A Tresoctogintillion (1 Tresoctogintillion) is 10 to the power of 252 (10^252). This is a monumentally astronomical number!

How many zeros in a Tresoctogintillion?

There are 252 zeros in a Tresoctogintillion.

What's before Tresoctogintillion?

A Duooctogintillion is smaller than a Tresoctogintillion.

What's after Tresoctogintillion?

A Quattuoroctogintillion is larger than a Tresoctogintillion.


A Tresoctogintillionaire is someone whos assets, net worth or wealth is 1 or more Tresoctogintillion. It is unlikely anyone will ever be a true Tresoctogintillionaire. If you want to be a Tresoctogintillionaire, play Tap Tales!

Is Tresoctogintillion the largest number?

Tresoctogintillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Tresoctogintillion written out

Tresoctogintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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