159989568 has 56 divisors (see below), whose sum is σ = 429658272. Its totient is φ = 52529664.

The previous prime is 159989561. The next prime is 159989573. The reversal of 159989568 is 865989951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159989561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6646 + ... + 19082.

Almost surely, 2^159989568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159989568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214829136).

159989568 is an abundant number, since it is smaller than the sum of its proper divisors (269668704).

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

159989568 is a wasteful number, since it uses less digits than its factorization.

159989568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519 (or 12509 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 60.

The square root of 159989568 is about 12648.6982729449. The cubic root of 159989568 is about 542.8717243940.

The spelling of 159989568 in words is "one hundred fifty-nine million, nine hundred eighty-nine thousand, five hundred sixty-eight".