159679920 has 80 divisors (see below), whose sum is σ = 496968192. Its totient is φ = 42412800.

The previous prime is 159679867. The next prime is 159679921. The reversal of 159679920 is 29976951.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 159679920.

It is not an unprimeable number, because it can be changed into a prime (159679921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66745 + ... + 69095.

Almost surely, 2^159679920 is an apocalyptic number.

159679920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159679920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248484096).

159679920 is an abundant number, since it is smaller than the sum of its proper divisors (337288272).

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

159679920 is a wasteful number, since it uses less digits than its factorization.

159679920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 159679920 is about 12636.4520337000. The cubic root of 159679920 is about 542.5212688186.

The spelling of 159679920 in words is "one hundred fifty-nine million, six hundred seventy-nine thousand, nine hundred twenty".