331000664 has 32 divisors (see below), whose sum is σ = 643518000. Its totient is φ = 159422592.

The previous prime is 331000643. The next prime is 331000711. The reversal of 331000664 is 466000133.

It is a super-2 number, since 2×331000664² = 219122879136881792, 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 7 ways as a sum of consecutive naturals, for example, 116687 + ... + 119489.

Almost surely, 2^331000664 is an apocalyptic number.

It is an amenable number.

331000664 is a deficient number, since it is larger than the sum of its proper divisors (312517336).

331000664 is a wasteful number, since it uses less digits than its factorization.

331000664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 331000664 is about 18193.4236470215. The cubic root of 331000664 is about 691.7401042136.

Adding to 331000664 its reverse (466000133), we get a palindrome (797000797).

The spelling of 331000664 in words is "three hundred thirty-one million, six hundred sixty-four", and thus it is an aban number.