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A Sesexagintillion (1 Sesexagintillion) is 10 to the power of 201 (10^201). This is a colossal number!

How many zeros in a Sesexagintillion?

There are 201 zeros in a Sesexagintillion.

What's before Sesexagintillion?

A Quinsexagintillion is smaller than a Sesexagintillion.

What's after Sesexagintillion?

A Septensexagintillion is larger than a Sesexagintillion.


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

Is Sesexagintillion the largest number?

Sesexagintillion 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.

Sesexagintillion written out

Sesexagintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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