159987572737 has 8 divisors (see below), whose sum is σ = 166115111040. Its totient is φ = 153900749520.

The previous prime is 159987572669. The next prime is 159987572809. The reversal of 159987572737 is 737275789951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159987572737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159987570737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10170763 + ... + 10186480.

It is an arithmetic number, because the mean of its divisors is an integer number (20764388880).

Almost surely, 2^159987572737 is an apocalyptic number.

It is an amenable number.

159987572737 is a deficient number, since it is larger than the sum of its proper divisors (6127538303).

159987572737 is a wasteful number, since it uses less digits than its factorization.

159987572737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20357543.

The product of its digits is 233377200, while the sum is 70.

The spelling of 159987572737 in words is "one hundred fifty-nine billion, nine hundred eighty-seven million, five hundred seventy-two thousand, seven hundred thirty-seven".