331665104 has 20 divisors (see below), whose sum is σ = 680401764. Its totient is φ = 156077568.

The previous prime is 331665079. The next prime is 331665107. The reversal of 331665104 is 401566133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 248125504 + 83539600 = 15752^2 + 9140^2 .

It is a super-2 number, since 2×331665104² = 220003482422661632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331665107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 609407 + ... + 609950.

Almost surely, 2^331665104 is an apocalyptic number.

331665104 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

331665104 is an abundant number, since it is smaller than the sum of its proper divisors (348736660).

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

331665104 is a wasteful number, since it uses less digits than its factorization.

331665104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219382 (or 1219376 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 331665104 is about 18211.6749366993. The cubic root of 331665104 is about 692.2026537343.

The spelling of 331665104 in words is "three hundred thirty-one million, six hundred sixty-five thousand, one hundred four".