660606512 has 10 divisors (see below), whose sum is σ = 1279925148. Its totient is φ = 330303248.

The previous prime is 660606511. The next prime is 660606517. The reversal of 660606512 is 215606066.

It is a super-2 number, since 2×660606512² = 872801927393612288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (660606511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20643938 + ... + 20643969.

Almost surely, 2^660606512 is an apocalyptic number.

It is an amenable number.

660606512 is a deficient number, since it is larger than the sum of its proper divisors (619318636).

660606512 is a wasteful number, since it uses less digits than its factorization.

660606512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41287915 (or 41287909 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 660606512 is about 25702.2666704709. The cubic root of 660606512 is about 870.9253869545.

The spelling of 660606512 in words is "six hundred sixty million, six hundred six thousand, five hundred twelve".