159517682640 has 160 divisors (see below), whose sum is σ = 564300072960. Its totient is φ = 41388350976.

The previous prime is 159517682593. The next prime is 159517682689. The reversal of 159517682640 is 46286715951.

It is a happy number.

159517682640 is a `hidden beast` number, since 1 + 5 + 9 + 517 + 6 + 82 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 918064 + ... + 1077903.

It is an arithmetic number, because the mean of its divisors is an integer number (3526875456).

Almost surely, 2^159517682640 is an apocalyptic number.

159517682640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159517682640 is an abundant number, since it is smaller than the sum of its proper divisors (404782390320).

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

159517682640 is a wasteful number, since it uses less digits than its factorization.

159517682640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996026 (or 1996014 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 159517682640 in words is "one hundred fifty-nine billion, five hundred seventeen million, six hundred eighty-two thousand, six hundred forty".