331664164 has 36 divisors (see below), whose sum is σ = 645970332. Its totient is φ = 148115520.

The previous prime is 331664119. The next prime is 331664167. The reversal of 331664164 is 461466133.

It can be written as a sum of positive squares in 2 ways, for example, as 21622500 + 310041664 = 4650^2 + 17608^2 .

It is a super-2 number, since 2×331664164² = 220002235363637792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331664167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46654 + ... + 53290.

Almost surely, 2^331664164 is an apocalyptic number.

It is an amenable number.

331664164 is a deficient number, since it is larger than the sum of its proper divisors (314306168).

331664164 is a wasteful number, since it uses less digits than its factorization.

331664164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6716 (or 6683 counting only the distinct ones).

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

The square root of 331664164 is about 18211.6491290602. The cubic root of 331664164 is about 692.2019997904.

The spelling of 331664164 in words is "three hundred thirty-one million, six hundred sixty-four thousand, one hundred sixty-four".