159791632 has 120 divisors (see below), whose sum is σ = 419292608. Its totient is φ = 57404160.

The previous prime is 159791629. The next prime is 159791657. The reversal of 159791632 is 236197951.

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, 175723 + ... + 176629.

Almost surely, 2^159791632 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 159791632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209646304).

159791632 is an abundant number, since it is smaller than the sum of its proper divisors (259500976).

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

159791632 is a wasteful number, since it uses less digits than its factorization.

159791632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957 (or 940 counting only the distinct ones).

The product of its digits is 102060, while the sum is 43.

The square root of 159791632 is about 12640.8714889441. The cubic root of 159791632 is about 542.6477552049.

The spelling of 159791632 in words is "one hundred fifty-nine million, seven hundred ninety-one thousand, six hundred thirty-two".