159781171088 has 40 divisors (see below), whose sum is σ = 385964909760. Its totient is φ = 62252403840.

The previous prime is 159781171057. The next prime is 159781171091. The reversal of 159781171088 is 880171187951.

159781171088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (56).

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 7 ways as a sum of consecutive naturals, for example, 64845023 + ... + 64847486.

It is an arithmetic number, because the mean of its divisors is an integer number (9649122744).

Almost surely, 2^159781171088 is an apocalyptic number.

It is an amenable number.

159781171088 is an abundant number, since it is smaller than the sum of its proper divisors (226183738672).

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

159781171088 is a wasteful number, since it uses less digits than its factorization.

159781171088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129692535 (or 129692529 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 56.

The spelling of 159781171088 in words is "one hundred fifty-nine billion, seven hundred eighty-one million, one hundred seventy-one thousand, eighty-eight".