159739120640 has 176 divisors, whose sum is σ = 419076971424. Its totient is φ = 57940377600.

The previous prime is 159739120601. The next prime is 159739120663. The reversal of 159739120640 is 46021937951.

It is a tau number, because it is divible by the number of its divisors (176).

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, 23707352 + ... + 23714088.

Almost surely, 2^159739120640 is an apocalyptic number.

159739120640 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 159739120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209538485712).

159739120640 is an abundant number, since it is smaller than the sum of its proper divisors (259337850784).

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

159739120640 is a wasteful number, since it uses less digits than its factorization.

159739120640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194 (or 7176 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 159739120640 in words is "one hundred fifty-nine billion, seven hundred thirty-nine million, one hundred twenty thousand, six hundred forty".