320667872272 has 80 divisors (see below), whose sum is σ = 740794443264. Its totient is φ = 132758784000.

The previous prime is 320667872249. The next prime is 320667872311. The reversal of 320667872272 is 272278766023.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1635879 + ... + 1821382.

Almost surely, 2^320667872272 is an apocalyptic number.

It is an amenable number.

320667872272 is an abundant number, since it is smaller than the sum of its proper divisors (420126570992).

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

320667872272 is a wasteful number, since it uses less digits than its factorization.

320667872272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3457328 (or 3457322 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 52.

The spelling of 320667872272 in words is "three hundred twenty billion, six hundred sixty-seven million, eight hundred seventy-two thousand, two hundred seventy-two".