231632236638552 has 64 divisors (see below), whose sum is σ = 581063508154080. Its totient is φ = 76946362601472.

The previous prime is 231632236638527. The next prime is 231632236638563. The reversal of 231632236638552 is 255836632236132.

231632236638552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231632236638492 and 231632236638501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044232518 + ... + 1044454314.

Almost surely, 2^{231632236638552} is an apocalyptic number.

It is an amenable number.

231632236638552 is an abundant number, since it is smaller than the sum of its proper divisors (349431271515528).

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

231632236638552 is a wasteful number, since it uses less digits than its factorization.

231632236638552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370612 (or 370608 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 57.

The spelling of 231632236638552 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 fifty-two".