159729700840 has 32 divisors (see below), whose sum is σ = 378307188000. Its totient is φ = 60529149504.

The previous prime is 159729700811. The next prime is 159729700877. The reversal of 159729700840 is 48007927951.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105084570 + ... + 105086089.

It is an arithmetic number, because the mean of its divisors is an integer number (11822099625).

Almost surely, 2^159729700840 is an apocalyptic number.

159729700840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159729700840 is an abundant number, since it is smaller than the sum of its proper divisors (218577487160).

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

159729700840 is a wasteful number, since it uses less digits than its factorization.

159729700840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210170689 (or 210170685 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 159729700840 in words is "one hundred fifty-nine billion, seven hundred twenty-nine million, seven hundred thousand, eight hundred forty".