159561927888 has 80 divisors (see below), whose sum is σ = 450614016000. Its totient is φ = 48251079040.

The previous prime is 159561927851. The next prime is 159561927907. The reversal of 159561927888 is 888729165951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62538 + ... + 568361.

It is an arithmetic number, because the mean of its divisors is an integer number (5632675200).

Almost surely, 2^159561927888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159561927888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225307008000).

159561927888 is an abundant number, since it is smaller than the sum of its proper divisors (291052088112).

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

159561927888 is a wasteful number, since it uses less digits than its factorization.

159561927888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631400 (or 631394 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 69.

The spelling of 159561927888 in words is "one hundred fifty-nine billion, five hundred sixty-one million, nine hundred twenty-seven thousand, eight hundred eighty-eight".