659999999992 has 16 divisors (see below), whose sum is σ = 1245382167960. Its totient is φ = 327898088544.

The previous prime is 659999999963. The next prime is 660000000019. The reversal of 659999999992 is 299999999956.

659999999992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 659999999992.

It is a congruent number.

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, 262737598 + ... + 262740109.

Almost surely, 2^659999999992 is an apocalyptic number.

It is an amenable number.

659999999992 is a deficient number, since it is larger than the sum of its proper divisors (585382167968).

659999999992 is a wasteful number, since it uses less digits than its factorization.

659999999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525477870 (or 525477866 counting only the distinct ones).

The product of its digits is 23245229340, while the sum is 94.

The spelling of 659999999992 in words is "six hundred fifty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-two".