159993659 has 8 divisors (see below), whose sum is σ = 182972928. Its totient is φ = 137045160.

The previous prime is 159993641. The next prime is 159993677. The reversal of 159993659 is 956399951.

It is an interprime number because it is at equal distance from previous prime (159993641) and next prime (159993677).

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

It is not a de Polignac number, because 159993659 - 2⁸ = 159993403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159993619) 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, 4814 + ... + 18524.

It is an arithmetic number, because the mean of its divisors is an integer number (22871616).

Almost surely, 2^159993659 is an apocalyptic number.

159993659 is a deficient number, since it is larger than the sum of its proper divisors (22979269).

159993659 is a wasteful number, since it uses less digits than its factorization.

159993659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15385.

The product of its digits is 2952450, while the sum is 56.

The square root of 159993659 is about 12648.8599881570. The cubic root of 159993659 is about 542.8763515067.

The spelling of 159993659 in words is "one hundred fifty-nine million, nine hundred ninety-three thousand, six hundred fifty-nine".