331146664 has 16 divisors (see below), whose sum is σ = 621400320. Its totient is φ = 165439920.

The previous prime is 331146659. The next prime is 331146671. The reversal of 331146664 is 466641133.

It is a super-2 number, since 2×331146664² = 219316226156657792, which contains 22 as substring.

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, 5704 + ... + 26359.

It is an arithmetic number, because the mean of its divisors is an integer number (38837520).

Almost surely, 2^331146664 is an apocalyptic number.

It is an amenable number.

331146664 is a deficient number, since it is larger than the sum of its proper divisors (290253656).

331146664 is a wasteful number, since it uses less digits than its factorization.

331146664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33360 (or 33356 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 331146664 is about 18197.4356435186. The cubic root of 331146664 is about 691.8417950567.

Adding to 331146664 its reverse (466641133), we get a palindrome (797787797).

The spelling of 331146664 in words is "three hundred thirty-one million, one hundred forty-six thousand, six hundred sixty-four".