660551312 has 40 divisors (see below), whose sum is σ = 1301529792. Its totient is φ = 324720000.

The previous prime is 660551293. The next prime is 660551323. The reversal of 660551312 is 213155066.

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, 242663 + ... + 245369.

Almost surely, 2^660551312 is an apocalyptic number.

It is an amenable number.

660551312 is a deficient number, since it is larger than the sum of its proper divisors (640978480).

660551312 is a wasteful number, since it uses less digits than its factorization.

660551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967 (or 2961 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 660551312 is about 25701.1928127859. The cubic root of 660551312 is about 870.9011282268.

The spelling of 660551312 in words is "six hundred sixty million, five hundred fifty-one thousand, three hundred twelve".