159691168 has 192 divisors, whose sum is σ = 419973120. Its totient is φ = 58060800.

The previous prime is 159691163. The next prime is 159691171. The reversal of 159691168 is 861196951.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (159691163) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2617858 + ... + 2617918.

It is an arithmetic number, because the mean of its divisors is an integer number (2187360).

Almost surely, 2^159691168 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 159691168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209986560).

159691168 is an abundant number, since it is smaller than the sum of its proper divisors (260281952).

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

159691168 is a wasteful number, since it uses less digits than its factorization.

159691168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 143 counting only the distinct ones).

The product of its digits is 116640, while the sum is 46.

The square root of 159691168 is about 12636.8970874974. The cubic root of 159691168 is about 542.5340070848.

The spelling of 159691168 in words is "one hundred fifty-nine million, six hundred ninety-one thousand, one hundred sixty-eight".