331664056 has 16 divisors (see below), whose sum is σ = 626768640. Its totient is φ = 164525760.

The previous prime is 331664027. The next prime is 331664063. The reversal of 331664056 is 650466133.

It is a super-2 number, since 2×331664056² = 220002092084742272, which 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 3 ways as a sum of consecutive naturals, for example, 162205 + ... + 164236.

It is an arithmetic number, because the mean of its divisors is an integer number (39173040).

Almost surely, 2^331664056 is an apocalyptic number.

It is an amenable number.

331664056 is a deficient number, since it is larger than the sum of its proper divisors (295104584).

331664056 is a wasteful number, since it uses less digits than its factorization.

331664056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326574 (or 326570 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 331664056 is about 18211.6461639249. The cubic root of 331664056 is about 692.2019246563.

The spelling of 331664056 in words is "three hundred thirty-one million, six hundred sixty-four thousand, fifty-six".