23131687165804 has 24 divisors (see below), whose sum is σ = 48274825390848. Its totient is φ = 9482554986960.

The previous prime is 23131687165799. The next prime is 23131687165819. The reversal of 23131687165804 is 40856178613132.

It is a super-2 number, since 2×23131687165804² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17959383802 + ... + 17959385089.

It is an arithmetic number, because the mean of its divisors is an integer number (2011451057952).

Almost surely, 2^{23131687165804} is an apocalyptic number.

It is an amenable number.

23131687165804 is an abundant number, since it is smaller than the sum of its proper divisors (25143138225044).

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

23131687165804 is a wasteful number, since it uses less digits than its factorization.

23131687165804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35918768925 (or 35918768923 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 23131687165804 in words is "twenty-three trillion, one hundred thirty-one billion, six hundred eighty-seven million, one hundred sixty-five thousand, eight hundred four".