159992665 has 8 divisors (see below), whose sum is σ = 219418560. Its totient is φ = 109709232.

The previous prime is 159992663. The next prime is 159992683. The reversal of 159992665 is 566299951.

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 159992665 - 2¹ = 159992663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159992663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285575 + ... + 2285644.

It is an arithmetic number, because the mean of its divisors is an integer number (27427320).

Almost surely, 2^159992665 is an apocalyptic number.

It is an amenable number.

159992665 is a deficient number, since it is larger than the sum of its proper divisors (59425895).

159992665 is an equidigital number, since it uses as much as digits as its factorization.

159992665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571231.

The product of its digits is 1312200, while the sum is 52.

The square root of 159992665 is about 12648.8206960175. The cubic root of 159992665 is about 542.8752272534.

The spelling of 159992665 in words is "one hundred fifty-nine million, nine hundred ninety-two thousand, six hundred sixty-five".