331661164 has 12 divisors (see below), whose sum is σ = 588582288. Its totient is φ = 163494800.

The previous prime is 331661149. The next prime is 331661191. The reversal of 331661164 is 461166133.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583627 + ... + 584194.

It is an arithmetic number, because the mean of its divisors is an integer number (49048524).

Almost surely, 2^331661164 is an apocalyptic number.

It is an amenable number.

331661164 is a deficient number, since it is larger than the sum of its proper divisors (256921124).

331661164 is a wasteful number, since it uses less digits than its factorization.

331661164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167896 (or 1167894 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 331661164 is about 18211.5667640102. The cubic root of 331661164 is about 692.1999127271.

The spelling of 331661164 in words is "three hundred thirty-one million, six hundred sixty-one thousand, one hundred sixty-four".