320056633541656 has 64 divisors (see below), whose sum is σ = 693737566894080. Its totient is φ = 136810666836480.

The previous prime is 320056633541641. The next prime is 320056633541669. The reversal of 320056633541656 is 656145336650023.

It is a junction number, because it is equal to n+sod(n) for n = 320056633541597 and 320056633541606.

It is a congruent number.

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, 85636296 + ... + 89295511.

It is an arithmetic number, because the mean of its divisors is an integer number (10839649482720).

Almost surely, 2^{320056633541656} is an apocalyptic number.

It is an amenable number.

320056633541656 is an abundant number, since it is smaller than the sum of its proper divisors (373680933352424).

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

320056633541656 is a wasteful number, since it uses less digits than its factorization.

320056633541656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174933064 (or 174933060 counting only the distinct ones).

The product of its (nonzero) digits is 34992000, while the sum is 55.

The spelling of 320056633541656 in words is "three hundred twenty trillion, fifty-six billion, six hundred thirty-three million, five hundred forty-one thousand, six hundred fifty-six".