23161632400 has 30 divisors (see below), whose sum is σ = 55645822802. Its totient is φ = 9264652800.

The previous prime is 23161632379. The next prime is 23161632401. The reversal of 23161632400 is 423616132.

It can be written as a sum of positive squares in 3 ways, for example, as 3808370944 + 19353261456 = 61712^2 + 139116^2 .

It is a super-2 number, since 2×23161632400² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23161632401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28951641 + ... + 28952440.

Almost surely, 2^23161632400 is an apocalyptic number.

23161632400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23161632400 is an abundant number, since it is smaller than the sum of its proper divisors (32484190402).

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

23161632400 is a wasteful number, since it uses less digits than its factorization.

23161632400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57904099 (or 57904088 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 23161632400 in words is "twenty-three billion, one hundred sixty-one million, six hundred thirty-two thousand, four hundred".