159856901760 has 128 divisors (see below), whose sum is σ = 509796244800. Its totient is φ = 42607394816.

The previous prime is 159856901759. The next prime is 159856901797. The reversal of 159856901760 is 67109658951.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 159856901760.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4068127 + ... + 4107233.

Almost surely, 2^159856901760 is an apocalyptic number.

159856901760 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 159856901760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254898122400).

159856901760 is an abundant number, since it is smaller than the sum of its proper divisors (349939343040).

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

159856901760 is a wasteful number, since it uses less digits than its factorization.

159856901760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41258 (or 41246 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 159856901760 in words is "one hundred fifty-nine billion, eight hundred fifty-six million, nine hundred one thousand, seven hundred sixty".