320458350656 has 56 divisors (see below), whose sum is σ = 637610229984. Its totient is φ = 159801154560.

The previous prime is 320458350643. The next prime is 320458350691. The reversal of 320458350656 is 656053854023.

It is a self number, because there is not a number n which added to its sum of digits gives 320458350656.

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, 57602531 + ... + 57608093.

It is an arithmetic number, because the mean of its divisors is an integer number (11385896964).

Almost surely, 2^320458350656 is an apocalyptic number.

It is an amenable number.

320458350656 is a deficient number, since it is larger than the sum of its proper divisors (317151879328).

320458350656 is a wasteful number, since it uses less digits than its factorization.

320458350656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7819 (or 7809 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 320458350656 in words is "three hundred twenty billion, four hundred fifty-eight million, three hundred fifty thousand, six hundred fifty-six".