660000000008 has 16 divisors (see below), whose sum is σ = 1254929578560. Its totient is φ = 325352112400.

The previous prime is 659999999963. The next prime is 660000000019. The reversal of 660000000008 is 800000000066.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580985348 + ... + 580986483.

It is an arithmetic number, because the mean of its divisors is an integer number (78433098660).

Almost surely, 2^660000000008 is an apocalyptic number.

It is an amenable number.

660000000008 is a deficient number, since it is larger than the sum of its proper divisors (594929578552).

660000000008 is a wasteful number, since it uses less digits than its factorization.

660000000008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161971908 (or 1161971904 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 660000000008 in words is "six hundred sixty billion, eight", and thus it is an aban number.