660562992 has 40 divisors (see below), whose sum is σ = 1896061680. Its totient is φ = 220187520.

The previous prime is 660562943. The next prime is 660563011. The reversal of 660562992 is 299265066.

660562992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 764109 + ... + 764972.

It is an arithmetic number, because the mean of its divisors is an integer number (47401542).

Almost surely, 2^660562992 is an apocalyptic number.

It is an amenable number.

660562992 is an abundant number, since it is smaller than the sum of its proper divisors (1235498688).

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

660562992 is a wasteful number, since it uses less digits than its factorization.

660562992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529098 (or 1529086 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 660562992 is about 25701.4200385893. The cubic root of 660562992 is about 870.9062613456.

The spelling of 660562992 in words is "six hundred sixty million, five hundred sixty-two thousand, nine hundred ninety-two".