15255136161 has 32 divisors (see below), whose sum is σ = 22740756480. Its totient is φ = 10107011088.

The previous prime is 15255136109. The next prime is 15255136163. The reversal of 15255136161 is 16163155251.

15255136161 is a `hidden beast` number, since 1 + 5 + 25 + 5 + 13 + 616 + 1 = 666.

It is not a de Polignac number, because 15255136161 - 2⁶ = 15255136097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15255136163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3963540 + ... + 3967386.

It is an arithmetic number, because the mean of its divisors is an integer number (710648640).

Almost surely, 2^15255136161 is an apocalyptic number.

It is an amenable number.

15255136161 is a deficient number, since it is larger than the sum of its proper divisors (7485620319).

15255136161 is a wasteful number, since it uses less digits than its factorization.

15255136161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730 (or 4724 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The spelling of 15255136161 in words is "fifteen billion, two hundred fifty-five million, one hundred thirty-six thousand, one hundred sixty-one".