159665115916 has 6 divisors (see below), whose sum is σ = 279413952860. Its totient is φ = 79832557956.

The previous prime is 159665115913. The next prime is 159665115947. The reversal of 159665115916 is 619511566951.

It is not an unprimeable number, because it can be changed into a prime (159665115913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19958139486 + ... + 19958139493.

Almost surely, 2^159665115916 is an apocalyptic number.

It is an amenable number.

159665115916 is a deficient number, since it is larger than the sum of its proper divisors (119748836944).

159665115916 is a wasteful number, since it uses less digits than its factorization.

159665115916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39916278983 (or 39916278981 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 55.

The spelling of 159665115916 in words is "one hundred fifty-nine billion, six hundred sixty-five million, one hundred fifteen thousand, nine hundred sixteen".