320354816972 has 6 divisors (see below), whose sum is σ = 560620929708. Its totient is φ = 160177408484.

The previous prime is 320354816917. The next prime is 320354817007. The reversal of 320354816972 is 279618453023.

It is a self number, because there is not a number n which added to its sum of digits gives 320354816972.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40044352118 + ... + 40044352125.

It is an arithmetic number, because the mean of its divisors is an integer number (93436821618).

It is a 1-persistent number, because it is pandigital, but 2⋅320354816972 = 640709633944 is not.

Almost surely, 2^320354816972 is an apocalyptic number.

It is an amenable number.

320354816972 is a deficient number, since it is larger than the sum of its proper divisors (240266112736).

320354816972 is a wasteful number, since it uses less digits than its factorization.

320354816972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80088704247 (or 80088704245 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 320354816972 in words is "three hundred twenty billion, three hundred fifty-four million, eight hundred sixteen thousand, nine hundred seventy-two".