159689583491 has 8 divisors (see below), whose sum is σ = 160035505344. Its totient is φ = 159343894440.

The previous prime is 159689583481. The next prime is 159689583509. The reversal of 159689583491 is 194385986951.

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

It is a cyclic number.

It is not a de Polignac number, because 159689583491 - 2²² = 159685389187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159689583401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1351976 + ... + 1465338.

It is an arithmetic number, because the mean of its divisors is an integer number (20004438168).

Almost surely, 2^159689583491 is an apocalyptic number.

159689583491 is a deficient number, since it is larger than the sum of its proper divisors (345921853).

159689583491 is a wasteful number, since it uses less digits than its factorization.

159689583491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116401.

The product of its digits is 83980800, while the sum is 68.

The spelling of 159689583491 in words is "one hundred fifty-nine billion, six hundred eighty-nine million, five hundred eighty-three thousand, four hundred ninety-one".