23165968725 has 18 divisors (see below), whose sum is σ = 41492824386. Its totient is φ = 12355183200.

The previous prime is 23165968723. The next prime is 23165968741. The reversal of 23165968725 is 52786956132.

23165968725 is a `hidden beast` number, since 23 + 1 + 6 + 596 + 8 + 7 + 25 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 393347889 + 22772620836 = 19833^2 + 150906^2 .

It is not a de Polignac number, because 23165968725 - 2¹ = 23165968723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23165968723) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51479706 + ... + 51480155.

Almost surely, 2^23165968725 is an apocalyptic number.

23165968725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23165968725 is a deficient number, since it is larger than the sum of its proper divisors (18326855661).

23165968725 is a wasteful number, since it uses less digits than its factorization.

23165968725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102959877 (or 102959869 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 23165968725 in words is "twenty-three billion, one hundred sixty-five million, nine hundred sixty-eight thousand, seven hundred twenty-five".