159691056 has 40 divisors (see below), whose sum is σ = 471469824. Its totient is φ = 45625920.

The previous prime is 159691039. The next prime is 159691061. The reversal of 159691056 is 650196951.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 159690999 and 159691017.

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, 237300 + ... + 237971.

Almost surely, 2^159691056 is an apocalyptic number.

159691056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

159691056 is an abundant number, since it is smaller than the sum of its proper divisors (311778768).

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

159691056 is a wasteful number, since it uses less digits than its factorization.

159691056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475289 (or 475283 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 42.

The square root of 159691056 is about 12636.8926560290. The cubic root of 159691056 is about 542.5338802487.

The spelling of 159691056 in words is "one hundred fifty-nine million, six hundred ninety-one thousand, fifty-six".