320056660423580 has 12 divisors (see below), whose sum is σ = 672118986889560. Its totient is φ = 128022664169424.

The previous prime is 320056660423579. The next prime is 320056660423589. The reversal of 320056660423580 is 85324066650023.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320056660423589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8001416510570 + ... + 8001416510609.

It is an arithmetic number, because the mean of its divisors is an integer number (56009915574130).

Almost surely, 2^{320056660423580} is an apocalyptic number.

It is an amenable number.

320056660423580 is an abundant number, since it is smaller than the sum of its proper divisors (352062326465980).

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

320056660423580 is a wasteful number, since it uses less digits than its factorization.

320056660423580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16002833021188 (or 16002833021186 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 50.

The spelling of 320056660423580 in words is "three hundred twenty trillion, fifty-six billion, six hundred sixty million, four hundred twenty-three thousand, five hundred eighty".