231632236638564 has 96 divisors (see below), whose sum is σ = 545591531520000. Its totient is φ = 76483672442496.

The previous prime is 231632236638563. The next prime is 231632236638587. The reversal of 231632236638564 is 465836632236132.

231632236638564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×231632236638564⁴ (a number of 59 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231632236638498 and 231632236638507.

It is not an unprimeable number, because it can be changed into a prime (231632236638563) 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, 924248017 + ... + 924498599.

It is an arithmetic number, because the mean of its divisors is an integer number (5683245120000).

Almost surely, 2^{231632236638564} is an apocalyptic number.

It is an amenable number.

231632236638564 is an abundant number, since it is smaller than the sum of its proper divisors (313959294881436).

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

231632236638564 is a wasteful number, since it uses less digits than its factorization.

231632236638564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252497 (or 252495 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 60.

The spelling of 231632236638564 in words is "two hundred thirty-one trillion, six hundred thirty-two billion, two hundred thirty-six million, six hundred thirty-eight thousand, five hundred sixty-four".