159721160 has 16 divisors (see below), whose sum is σ = 359372700. Its totient is φ = 63888448.

The previous prime is 159721157. The next prime is 159721187. The reversal of 159721160 is 61127951.

It can be written as a sum of positive squares in 2 ways, for example, as 159719044 + 2116 = 12638^2 + 46^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1996475 + ... + 1996554.

Almost surely, 2^159721160 is an apocalyptic number.

159721160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159721160 is an abundant number, since it is smaller than the sum of its proper divisors (199651540).

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

159721160 is a wasteful number, since it uses less digits than its factorization.

159721160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993040 (or 3993036 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 159721160 is about 12638.0837155005. The cubic root of 159721160 is about 542.5679698509.

The spelling of 159721160 in words is "one hundred fifty-nine million, seven hundred twenty-one thousand, one hundred sixty".