159879720 has 320 divisors, whose sum is σ = 649353600. Its totient is φ = 30666240.

The previous prime is 159879703. The next prime is 159879749. The reversal of 159879720 is 27978951.

It is a self number, because there is not a number n which added to its sum of digits gives 159879720.

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 715 × 363 × 616.

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 79 ways as a sum of consecutive naturals, for example, 12298434 + ... + 12298446.

It is an arithmetic number, because the mean of its divisors is an integer number (2029230).

Almost surely, 2^159879720 is an apocalyptic number.

159879720 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 159879720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324676800).

159879720 is an abundant number, since it is smaller than the sum of its proper divisors (489473880).

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

159879720 is a wasteful number, since it uses less digits than its factorization.

159879720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 48.

The square root of 159879720 is about 12644.3552623295. The cubic root of 159879720 is about 542.7474516531.

It can be divided in two parts, 1598 and 79720, that added together give a palindrome (81318).

The spelling of 159879720 in words is "one hundred fifty-nine million, eight hundred seventy-nine thousand, seven hundred twenty".