39916660028 has 24 divisors (see below), whose sum is σ = 79839037824. Its totient is φ = 17105914800.

The previous prime is 39916660001. The next prime is 39916660039. The reversal of 39916660028 is 82006661993.

It is a congruent number.

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, 424643 + ... + 510053.

It is an arithmetic number, because the mean of its divisors is an integer number (3326626576).

Almost surely, 2^39916660028 is an apocalyptic number.

It is an amenable number.

39916660028 is an abundant number, since it is smaller than the sum of its proper divisors (39922377796).

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

39916660028 is a wasteful number, since it uses less digits than its factorization.

39916660028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102113 (or 102111 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 39916660028 in words is "thirty-nine billion, nine hundred sixteen million, six hundred sixty thousand, twenty-eight".