331213312160 has 48 divisors (see below), whose sum is σ = 789670312200. Its totient is φ = 131269856256.

The previous prime is 331213312159. The next prime is 331213312207. The reversal of 331213312160 is 61213312133.

It can be written as a sum of positive squares in 4 ways, for example, as 190225077904 + 140988234256 = 436148^2 + 375484^2 .

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, 9478355 + ... + 9513234.

Almost surely, 2^331213312160 is an apocalyptic number.

It is an amenable number.

331213312160 is an abundant number, since it is smaller than the sum of its proper divisors (458457000040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331213312160 is a wasteful number, since it uses less digits than its factorization.

331213312160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991713 (or 18991705 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 331213312160 its reverse (61213312133), we get a palindrome (392426624293).

The spelling of 331213312160 in words is "three hundred thirty-one billion, two hundred thirteen million, three hundred twelve thousand, one hundred sixty".