399507159916 has 6 divisors (see below), whose sum is σ = 699137529860. Its totient is φ = 199753579956.

The previous prime is 399507159901. The next prime is 399507159923. The reversal of 399507159916 is 619951705993.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49938394986 + ... + 49938394993.

Almost surely, 2^399507159916 is an apocalyptic number.

It is an amenable number.

399507159916 is a deficient number, since it is larger than the sum of its proper divisors (299630369944).

399507159916 is a wasteful number, since it uses less digits than its factorization.

399507159916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99876789983 (or 99876789981 counting only the distinct ones).

The product of its (nonzero) digits is 20667150, while the sum is 64.

The spelling of 399507159916 in words is "three hundred ninety-nine billion, five hundred seven million, one hundred fifty-nine thousand, nine hundred sixteen".