159117590531 has 16 divisors (see below), whose sum is σ = 165317038080. Its totient is φ = 152985490560.

The previous prime is 159117590497. The next prime is 159117590587. The reversal of 159117590531 is 135095711951.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159117590531 is a prime.

It is a super-2 number, since 2×159117590531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (159117590831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27247910 + ... + 27253748.

It is an arithmetic number, because the mean of its divisors is an integer number (10332314880).

Almost surely, 2^159117590531 is an apocalyptic number.

159117590531 is a deficient number, since it is larger than the sum of its proper divisors (6199447549).

159117590531 is a wasteful number, since it uses less digits than its factorization.

159117590531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426.

The product of its (nonzero) digits is 212625, while the sum is 47.

The spelling of 159117590531 in words is "one hundred fifty-nine billion, one hundred seventeen million, five hundred ninety thousand, five hundred thirty-one".