159502081640 has 128 divisors (see below), whose sum is σ = 404374533120. Its totient is φ = 56096409600.

The previous prime is 159502081637. The next prime is 159502081663. The reversal of 159502081640 is 46180205951.

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, 38967434 + ... + 38971526.

It is an arithmetic number, because the mean of its divisors is an integer number (3159176040).

Almost surely, 2^159502081640 is an apocalyptic number.

159502081640 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 159502081640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202187266560).

159502081640 is an abundant number, since it is smaller than the sum of its proper divisors (244872451480).

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

159502081640 is a wasteful number, since it uses less digits than its factorization.

159502081640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7003 (or 6999 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 159502081640 in words is "one hundred fifty-nine billion, five hundred two million, eighty-one thousand, six hundred forty".