159542729568 has 480 divisors, whose sum is σ = 507230760960. Its totient is φ = 49063449600.

The previous prime is 159542729543. The next prime is 159542729587. The reversal of 159542729568 is 865927245951.

159542729568 is a `hidden beast` number, since 1 + 5 + 9 + 5 + 42 + 7 + 29 + 568 = 666.

159542729568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 333074353 + ... + 333074831.

It is an arithmetic number, because the mean of its divisors is an integer number (1056730752).

Almost surely, 2^159542729568 is an apocalyptic number.

159542729568 is a gapful number since it is divisible by the number (18) 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 159542729568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253615380480).

159542729568 is an abundant number, since it is smaller than the sum of its proper divisors (347688031392).

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

159542729568 is a wasteful number, since it uses less digits than its factorization.

159542729568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 695 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 159542729568 in words is "one hundred fifty-nine billion, five hundred forty-two million, seven hundred twenty-nine thousand, five hundred sixty-eight".