20125526661604 has 24 divisors (see below), whose sum is σ = 43347288195008. Its totient is φ = 7961746811040.

The previous prime is 20125526661587. The next prime is 20125526661607. The reversal of 20125526661604 is 40616662552102.

It is not an unprimeable number, because it can be changed into a prime (20125526661607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27644953842 + ... + 27644954569.

Almost surely, 2^{20125526661604} is an apocalyptic number.

It is an amenable number.

20125526661604 is an abundant number, since it is smaller than the sum of its proper divisors (23221761533404).

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

20125526661604 is a wasteful number, since it uses less digits than its factorization.

20125526661604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55289908435 (or 55289908433 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 20125526661604 in words is "twenty trillion, one hundred twenty-five billion, five hundred twenty-six million, six hundred sixty-one thousand, six hundred four".