159215136768 has 78 divisors (see below), whose sum is σ = 459898799204. Its totient is φ = 53071699968.

The previous prime is 159215136721. The next prime is 159215136791. The reversal of 159215136768 is 867631512951.

159215136768 is a `hidden beast` number, since 1 + 5 + 9 + 2 + 1 + 513 + 67 + 68 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2122630 + ... + 2196357.

Almost surely, 2^159215136768 is an apocalyptic number.

159215136768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

159215136768 is an abundant number, since it is smaller than the sum of its proper divisors (300683662436).

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

159215136768 is an equidigital number, since it uses as much as digits as its factorization.

159215136768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319017 (or 4318992 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The spelling of 159215136768 in words is "one hundred fifty-nine billion, two hundred fifteen million, one hundred thirty-six thousand, seven hundred sixty-eight".