320894920158 has 32 divisors (see below), whose sum is σ = 680339018016. Its totient is φ = 100554866688.

The previous prime is 320894920111. The next prime is 320894920163. The reversal of 320894920158 is 851029498023.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 320894920158.

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, 1757091 + ... + 1931102.

It is an arithmetic number, because the mean of its divisors is an integer number (21260594313).

Almost surely, 2^320894920158 is an apocalyptic number.

320894920158 is an abundant number, since it is smaller than the sum of its proper divisors (359444097858).

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

320894920158 is a wasteful number, since it uses less digits than its factorization.

320894920158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689068.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 320894920158 in words is "three hundred twenty billion, eight hundred ninety-four million, nine hundred twenty thousand, one hundred fifty-eight".