320056660431425 has 12 divisors (see below), whose sum is σ = 398013977271216. Its totient is φ = 255307445547600.

The previous prime is 320056660431419. The next prime is 320056660431433. The reversal of 320056660431425 is 524134066650023.

It is not a de Polignac number, because 320056660431425 - 2³² = 320052365464129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320056660431425.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18447061091 + ... + 18447078440.

It is an arithmetic number, because the mean of its divisors is an integer number (33167831439268).

Almost surely, 2^{320056660431425} is an apocalyptic number.

It is an amenable number.

320056660431425 is a deficient number, since it is larger than the sum of its proper divisors (77957316839791).

320056660431425 is a wasteful number, since it uses less digits than its factorization.

320056660431425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36894139888 (or 36894139883 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 320056660431425 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred thirty-one thousand, four hundred twenty-five".