159440771000 has 128 divisors (see below), whose sum is σ = 432755481600. Its totient is φ = 53849347200.

The previous prime is 159440770997. The next prime is 159440771059. The reversal of 159440771000 is 177044951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299021 + ... + 638979.

It is an arithmetic number, because the mean of its divisors is an integer number (3380902200).

Almost surely, 2^159440771000 is an apocalyptic number.

159440771000 is a gapful number since it is divisible by the number (10) 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 159440771000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216377740800).

159440771000 is an abundant number, since it is smaller than the sum of its proper divisors (273314710600).

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

159440771000 is a wasteful number, since it uses less digits than its factorization.

159440771000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340054 (or 340040 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The spelling of 159440771000 in words is "one hundred fifty-nine billion, four hundred forty million, seven hundred seventy-one thousand".