322139645660 has 24 divisors (see below), whose sum is σ = 773135149920. Its totient is φ = 110447878464.

The previous prime is 322139645651. The next prime is 322139645701. The reversal of 322139645660 is 66546931223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1150498595 + ... + 1150498874.

It is an arithmetic number, because the mean of its divisors is an integer number (32213964580).

Almost surely, 2^322139645660 is an apocalyptic number.

It is an amenable number.

322139645660 is an abundant number, since it is smaller than the sum of its proper divisors (450995504260).

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

322139645660 is a wasteful number, since it uses less digits than its factorization.

322139645660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300997485 (or 2300997483 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 47.

The spelling of 322139645660 in words is "three hundred twenty-two billion, one hundred thirty-nine million, six hundred forty-five thousand, six hundred sixty".