320766685596 has 72 divisors (see below), whose sum is σ = 929620115424. Its totient is φ = 91354798080.

The previous prime is 320766685549. The next prime is 320766685601. The reversal of 320766685596 is 695586667023.

It is a super-2 number, since 2×320766685596² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1954485 + ... + 2112236.

It is an arithmetic number, because the mean of its divisors is an integer number (12911390492).

Almost surely, 2^320766685596 is an apocalyptic number.

320766685596 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

320766685596 is an abundant number, since it is smaller than the sum of its proper divisors (608853429828).

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

320766685596 is a wasteful number, since it uses less digits than its factorization.

320766685596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067051 (or 4067046 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 63.

The spelling of 320766685596 in words is "three hundred twenty billion, seven hundred sixty-six million, six hundred eighty-five thousand, five hundred ninety-six".