320560885656256 has 42 divisors (see below), whose sum is σ = 739968192375108. Its totient is φ = 137383236708480.

The previous prime is 320560885656247. The next prime is 320560885656259. The reversal of 320560885656256 is 652656588065023.

It is a junction number, because it is equal to n+sod(n) for n = 320560885656191 and 320560885656200.

It is not an unprimeable number, because it can be changed into a prime (320560885656259) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51109831950 + ... + 51109838221.

Almost surely, 2^{320560885656256} is an apocalyptic number.

It is an amenable number.

320560885656256 is an abundant number, since it is smaller than the sum of its proper divisors (419407306718852).

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

320560885656256 is a wasteful number, since it uses less digits than its factorization.

320560885656256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102219670197 (or 102219670180 counting only the distinct ones).

The product of its (nonzero) digits is 622080000, while the sum is 67.

The spelling of 320560885656256 in words is "three hundred twenty trillion, five hundred sixty billion, eight hundred eighty-five million, six hundred fifty-six thousand, two hundred fifty-six".