321560416676 has 12 divisors (see below), whose sum is σ = 595832536908. Its totient is φ = 151322548992.

The previous prime is 321560416561. The next prime is 321560416691. The reversal of 321560416676 is 676614065123.

It can be written as a sum of positive squares in 2 ways, for example, as 282524140900 + 39036275776 = 531530^2 + 197576^2 .

It is a super-2 number, since 2×321560416676² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321560416676.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364414761 + ... + 2364414896.

It is an arithmetic number, because the mean of its divisors is an integer number (49652711409).

Almost surely, 2^321560416676 is an apocalyptic number.

It is an amenable number.

321560416676 is a deficient number, since it is larger than the sum of its proper divisors (274272120232).

321560416676 is a wasteful number, since it uses less digits than its factorization.

321560416676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728829678 (or 4728829676 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 321560416676 in words is "three hundred twenty-one billion, five hundred sixty million, four hundred sixteen thousand, six hundred seventy-six".