331564716 has 72 divisors (see below), whose sum is σ = 988775424. Its totient is φ = 91674720.

The previous prime is 331564699. The next prime is 331564769. The reversal of 331564716 is 617465133.

331564716 is a `hidden beast` number, since 3 + 3 + 1 + 5 + 647 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13410 + ... + 29033.

It is an arithmetic number, because the mean of its divisors is an integer number (13732992).

Almost surely, 2^331564716 is an apocalyptic number.

331564716 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

331564716 is an abundant number, since it is smaller than the sum of its proper divisors (657210708).

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

331564716 is a wasteful number, since it uses less digits than its factorization.

331564716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42491 (or 42486 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 331564716 is about 18208.9185840346. The cubic root of 331564716 is about 692.1328083277.

The spelling of 331564716 in words is "three hundred thirty-one million, five hundred sixty-four thousand, seven hundred sixteen".