159315966 has 48 divisors (see below), whose sum is σ = 358862400. Its totient is φ = 51019584.

The previous prime is 159315941. The next prime is 159315979. The reversal of 159315966 is 669513951.

159315966 is a `hidden beast` number, since 1 + 59 + 3 + 1 + 596 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124120 + ... + 125396.

It is an arithmetic number, because the mean of its divisors is an integer number (7476300).

Almost surely, 2^159315966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159315966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179431200).

159315966 is an abundant number, since it is smaller than the sum of its proper divisors (199546434).

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

159315966 is a wasteful number, since it uses less digits than its factorization.

159315966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1550 counting only the distinct ones).

The product of its digits is 218700, while the sum is 45.

The square root of 159315966 is about 12622.0428615973. The cubic root of 159315966 is about 542.1087707155.

The spelling of 159315966 in words is "one hundred fifty-nine million, three hundred fifteen thousand, nine hundred sixty-six".