159991325424 has 240 divisors, whose sum is σ = 534321515520. Its totient is φ = 43722201600.

The previous prime is 159991325419. The next prime is 159991325441. The reversal of 159991325424 is 424523199951.

159991325424 is a `hidden beast` number, since 1 + 5 + 9 + 9 + 91 + 3 + 2 + 542 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3102249 + ... + 3153399.

It is an arithmetic number, because the mean of its divisors is an integer number (2226339648).

Almost surely, 2^159991325424 is an apocalyptic number.

159991325424 is a gapful number since it is divisible by the number (14) 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 159991325424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267160757760).

159991325424 is an abundant number, since it is smaller than the sum of its proper divisors (374330190096).

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

159991325424 is a wasteful number, since it uses less digits than its factorization.

159991325424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51308 (or 51299 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The spelling of 159991325424 in words is "one hundred fifty-nine billion, nine hundred ninety-one million, three hundred twenty-five thousand, four hundred twenty-four".