231807012605660 has 24 divisors (see below), whose sum is σ = 486845208545136. Its totient is φ = 92713189409280.

The previous prime is 231807012605657. The next prime is 231807012605681. The reversal of 231807012605660 is 66506210708132.

It is a super-2 number, since 2×231807012605660² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 600779381 + ... + 601165100.

It is an arithmetic number, because the mean of its divisors is an integer number (20285217022714).

Almost surely, 2^{231807012605660} is an apocalyptic number.

231807012605660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231807012605660 is an abundant number, since it is smaller than the sum of its proper divisors (255038195939476).

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

231807012605660 is a wasteful number, since it uses less digits than its factorization.

231807012605660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201954133 (or 1201954131 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 231807012605660 in words is "two hundred thirty-one trillion, eight hundred seven billion, twelve million, six hundred five thousand, six hundred sixty".