231560016 has 20 divisors (see below), whose sum is σ = 598196832. Its totient is φ = 77186656.

The previous prime is 231559967. The next prime is 231560027. The reversal of 231560016 is 610065132.

231560016 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-3 number, since 3×231560016³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2412036 + ... + 2412131.

Almost surely, 2^231560016 is an apocalyptic number.

It is an amenable number.

231560016 is an abundant number, since it is smaller than the sum of its proper divisors (366636816).

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

231560016 is a wasteful number, since it uses less digits than its factorization.

231560016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824178 (or 4824172 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 231560016 is about 15217.0961750263. The cubic root of 231560016 is about 614.0746795958.

The spelling of 231560016 in words is "two hundred thirty-one million, five hundred sixty thousand, sixteen".