159822720 has 160 divisors (see below), whose sum is σ = 570940920. Its totient is φ = 42605568.

The previous prime is 159822713. The next prime is 159822739. The reversal of 159822720 is 27228951.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50299 + ... + 53381.

Almost surely, 2^159822720 is an apocalyptic number.

159822720 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 159822720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285470460).

159822720 is an abundant number, since it is smaller than the sum of its proper divisors (411118200).

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

159822720 is an equidigital number, since it uses as much as digits as its factorization.

159822720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114 (or 3093 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 159822720 is about 12642.1010911952. The cubic root of 159822720 is about 542.6829442389.

The spelling of 159822720 in words is "one hundred fifty-nine million, eight hundred twenty-two thousand, seven hundred twenty".