321225445500652 has 72 divisors (see below), whose sum is σ = 720433872215568. Its totient is φ = 123913634544000.

The previous prime is 321225445500623. The next prime is 321225445500677. The reversal of 321225445500652 is 256005544522123.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 737363403 + ... + 737798914.

It is an arithmetic number, because the mean of its divisors is an integer number (10006026002994).

Almost surely, 2^{321225445500652} is an apocalyptic number.

It is an amenable number.

321225445500652 is an abundant number, since it is smaller than the sum of its proper divisors (399208426714916).

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

321225445500652 is a wasteful number, since it uses less digits than its factorization.

321225445500652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475162447 (or 1475162438 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 321225445500652 in words is "three hundred twenty-one trillion, two hundred twenty-five billion, four hundred forty-five million, five hundred thousand, six hundred fifty-two".