331664502 has 16 divisors (see below), whose sum is σ = 714354480. Its totient is φ = 102050592.

The previous prime is 331664467. The next prime is 331664521. The reversal of 331664502 is 205466133.

It is a super-2 number, since 2×331664502² = 220002683773816008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331664502.

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, 2125977 + ... + 2126132.

It is an arithmetic number, because the mean of its divisors is an integer number (44647155).

Almost surely, 2^331664502 is an apocalyptic number.

331664502 is an abundant number, since it is smaller than the sum of its proper divisors (382689978).

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

331664502 is a wasteful number, since it uses less digits than its factorization.

331664502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252127.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 331664502 is about 18211.6584088325. The cubic root of 331664502 is about 692.2022349320.

The spelling of 331664502 in words is "three hundred thirty-one million, six hundred sixty-four thousand, five hundred two".