320056660425403 has 16 divisors (see below), whose sum is σ = 351400843624320. Its totient is φ = 289092832920000.

The previous prime is 320056660425401. The next prime is 320056660425421. The reversal of 320056660425403 is 304524066650023.

It is a cyclic number.

It is not a de Polignac number, because 320056660425403 - 2¹ = 320056660425401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320056660425401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140582925 + ... + 142841422.

It is an arithmetic number, because the mean of its divisors is an integer number (21962552726520).

Almost surely, 2^{320056660425403} is an apocalyptic number.

320056660425403 is a deficient number, since it is larger than the sum of its proper divisors (31344183198917).

320056660425403 is a wasteful number, since it uses less digits than its factorization.

320056660425403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283425018.

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 320056660425403 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-five thousand, four hundred three".