331664045 has 8 divisors (see below), whose sum is σ = 398817024. Its totient is φ = 264784464.

The previous prime is 331664027. The next prime is 331664063. The reversal of 331664045 is 540466133.

It is an interprime number because it is at equal distance from previous prime (331664027) and next prime (331664063).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331664045 - 2⁸ = 331663789 is a prime.

It is a super-2 number, since 2×331664045² = 220002077491524050, which contains 22 as substring.

It is a Duffinian number.

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, 65669 + ... + 70538.

It is an arithmetic number, because the mean of its divisors is an integer number (49852128).

Almost surely, 2^331664045 is an apocalyptic number.

It is an amenable number.

331664045 is a deficient number, since it is larger than the sum of its proper divisors (67152979).

331664045 is a wasteful number, since it uses less digits than its factorization.

331664045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136699.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 331664045 is about 18211.6458619203. The cubic root of 331664045 is about 692.2019170038.

The spelling of 331664045 in words is "three hundred thirty-one million, six hundred sixty-four thousand, forty-five".