20152565954136 has 192 divisors, whose sum is σ = 70394095699200. Its totient is φ = 5053934995200.

The previous prime is 20152565954071. The next prime is 20152565954173. The reversal of 20152565954136 is 63145956525102.

20152565954136 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 2 + 5 + 6 + 595 + 41 + 3 + 6 = 666.

It is a super-2 number, since 2×20152565954136² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62512030 + ... + 62833581.

It is an arithmetic number, because the mean of its divisors is an integer number (366635915100).

Almost surely, 2^{20152565954136} is an apocalyptic number.

It is an amenable number.

20152565954136 is an abundant number, since it is smaller than the sum of its proper divisors (50241529745064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20152565954136 is a wasteful number, since it uses less digits than its factorization.

20152565954136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125345670 (or 125345663 counting only the distinct ones).

The product of its (nonzero) digits is 9720000, while the sum is 54.

The spelling of 20152565954136 in words is "twenty trillion, one hundred fifty-two billion, five hundred sixty-five million, nine hundred fifty-four thousand, one hundred thirty-six".