159932816856968 has 32 divisors (see below), whose sum is σ = 305599646404800. Its totient is φ = 78440245610688.

The previous prime is 159932816856961. The next prime is 159932816856971. The reversal of 159932816856968 is 869658618239951.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 159932816856968.

It is not an unprimeable number, because it can be changed into a prime (159932816856961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39818846 + ... + 43650957.

It is an arithmetic number, because the mean of its divisors is an integer number (9549988950150).

Almost surely, 2^{159932816856968} is an apocalyptic number.

It is an amenable number.

159932816856968 is a deficient number, since it is larger than the sum of its proper divisors (145666829547832).

159932816856968 is a wasteful number, since it uses less digits than its factorization.

159932816856968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83474381 (or 83474377 counting only the distinct ones).

The product of its digits is 12093235200, while the sum is 86.

The spelling of 159932816856968 in words is "one hundred fifty-nine trillion, nine hundred thirty-two billion, eight hundred sixteen million, eight hundred fifty-six thousand, nine hundred sixty-eight".