321504416004 has 12 divisors (see below), whose sum is σ = 750176970704. Its totient is φ = 107168138664.

The previous prime is 321504415993. The next prime is 321504416027. The reversal of 321504416004 is 400614405123.

It is a tau number, because it is divible by the number of its divisors (12).

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, 13396017322 + ... + 13396017345.

Almost surely, 2^321504416004 is an apocalyptic number.

It is an amenable number.

321504416004 is an abundant number, since it is smaller than the sum of its proper divisors (428672554700).

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

321504416004 is a wasteful number, since it uses less digits than its factorization.

321504416004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26792034674 (or 26792034672 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 321504416004 in words is "three hundred twenty-one billion, five hundred four million, four hundred sixteen thousand, four".