159801672 has 64 divisors (see below), whose sum is σ = 407911680. Its totient is φ = 52157952.

The previous prime is 159801667. The next prime is 159801701. The reversal of 159801672 is 276108951.

It is a self number, because there is not a number n which added to its sum of digits gives 159801672.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344913 + ... + 345375.

It is an arithmetic number, because the mean of its divisors is an integer number (6373620).

Almost surely, 2^159801672 is an apocalyptic number.

159801672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

159801672 is an abundant number, since it is smaller than the sum of its proper divisors (248110008).

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

159801672 is a wasteful number, since it uses less digits than its factorization.

159801672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 159801672 is about 12641.2686072245. The cubic root of 159801672 is about 542.6591201500.

The spelling of 159801672 in words is "one hundred fifty-nine million, eight hundred one thousand, six hundred seventy-two".