320974945920 has 128 divisors (see below), whose sum is σ = 1136786328000. Its totient is φ = 85593314304.

The previous prime is 320974945877. The next prime is 320974945957. The reversal of 320974945920 is 29549479023.

320974945920 is a `hidden beast` number, since 3 + 2 + 0 + 9 + 7 + 49 + 4 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 9270190 + ... + 9304749.

Almost surely, 2^320974945920 is an apocalyptic number.

320974945920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320974945920 is an abundant number, since it is smaller than the sum of its proper divisors (815811382080).

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

320974945920 is a wasteful number, since it uses less digits than its factorization.

320974945920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18574967 (or 18574949 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 320974945920 in words is "three hundred twenty billion, nine hundred seventy-four million, nine hundred forty-five thousand, nine hundred twenty".