321316283568 has 80 divisors (see below), whose sum is σ = 949504584960. Its totient is φ = 91721764608.

The previous prime is 321316283551. The next prime is 321316283627. The reversal of 321316283568 is 865382613123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 58530 + ... + 803777.

It is an arithmetic number, because the mean of its divisors is an integer number (11868807312).

Almost surely, 2^321316283568 is an apocalyptic number.

It is an amenable number.

321316283568 is an abundant number, since it is smaller than the sum of its proper divisors (628188301392).

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

321316283568 is a wasteful number, since it uses less digits than its factorization.

321316283568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863434 (or 863428 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 321316283568 in words is "three hundred twenty-one billion, three hundred sixteen million, two hundred eighty-three thousand, five hundred sixty-eight".