320896919568 has 80 divisors (see below), whose sum is σ = 837911439680. Its totient is φ = 105819637248.

The previous prime is 320896919557. The next prime is 320896919569. The reversal of 320896919568 is 865919698023.

It is a super-2 number, since 2×320896919568² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320896919499 and 320896919508.

It is not an unprimeable number, because it can be changed into a prime (320896919569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1632771 + ... + 1818717.

It is an arithmetic number, because the mean of its divisors is an integer number (10473892996).

Almost surely, 2^320896919568 is an apocalyptic number.

It is an amenable number.

320896919568 is an abundant number, since it is smaller than the sum of its proper divisors (517014520112).

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

320896919568 is a wasteful number, since it uses less digits than its factorization.

320896919568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186344 (or 186338 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 66.

The spelling of 320896919568 in words is "three hundred twenty billion, eight hundred ninety-six million, nine hundred nineteen thousand, five hundred sixty-eight".