331564556516 has 6 divisors (see below), whose sum is σ = 580237973910. Its totient is φ = 165782278256.

The previous prime is 331564556483. The next prime is 331564556591. The reversal of 331564556516 is 615655465133.

It can be written as a sum of positive squares in only one way, i.e., 257357348416 + 74207208100 = 507304^2 + 272410^2 .

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 as a sum of consecutive naturals, namely, 41445569561 + ... + 41445569568.

It is an arithmetic number, because the mean of its divisors is an integer number (96706328985).

Almost surely, 2^331564556516 is an apocalyptic number.

It is an amenable number.

331564556516 is a deficient number, since it is larger than the sum of its proper divisors (248673417394).

331564556516 is a wasteful number, since it uses less digits than its factorization.

331564556516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82891139133 (or 82891139131 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 50.

The spelling of 331564556516 in words is "three hundred thirty-one billion, five hundred sixty-four million, five hundred fifty-six thousand, five hundred sixteen".