159918988 has 6 divisors (see below), whose sum is σ = 279858236. Its totient is φ = 79959492.

The previous prime is 159918971. The next prime is 159919007. The reversal of 159918988 is 889819951.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19989870 + ... + 19989877.

Almost surely, 2^159918988 is an apocalyptic number.

It is an amenable number.

159918988 is a deficient number, since it is larger than the sum of its proper divisors (119939248).

159918988 is a wasteful number, since it uses less digits than its factorization.

159918988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39979751 (or 39979749 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 58.

The square root of 159918988 is about 12645.9079547496. The cubic root of 159918988 is about 542.7918826839.

The spelling of 159918988 in words is "one hundred fifty-nine million, nine hundred eighteen thousand, nine hundred eighty-eight".