660322275650 has 24 divisors (see below), whose sum is σ = 1228643564160. Its totient is φ = 264033398160.

The previous prime is 660322275631. The next prime is 660322275659. The reversal of 660322275650 is 56572223066.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (660322275659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2248070 + ... + 2524769.

It is an arithmetic number, because the mean of its divisors is an integer number (51193481840).

Almost surely, 2^660322275650 is an apocalyptic number.

660322275650 is a deficient number, since it is larger than the sum of its proper divisors (568321288510).

660322275650 is a wasteful number, since it uses less digits than its factorization.

660322275650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4775618 (or 4775613 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 660322275650 in words is "six hundred sixty billion, three hundred twenty-two million, two hundred seventy-five thousand, six hundred fifty".