159699660 has 24 divisors (see below), whose sum is σ = 447159216. Its totient is φ = 42586560.

The previous prime is 159699643. The next prime is 159699679. The reversal of 159699660 is 66996951.

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, 1330771 + ... + 1330890.

It is an arithmetic number, because the mean of its divisors is an integer number (18631634).

Almost surely, 2^159699660 is an apocalyptic number.

159699660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159699660 is an abundant number, since it is smaller than the sum of its proper divisors (287459556).

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

159699660 is a wasteful number, since it uses less digits than its factorization.

159699660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661673 (or 2661671 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 51.

The square root of 159699660 is about 12637.2330832346. The cubic root of 159699660 is about 542.5436238077.

The spelling of 159699660 in words is "one hundred fifty-nine million, six hundred ninety-nine thousand, six hundred sixty".