159165165 has 32 divisors (see below), whose sum is σ = 260447616. Its totient is φ = 82978560.

The previous prime is 159165161. The next prime is 159165211. The reversal of 159165165 is 561561951.

It is not a de Polignac number, because 159165165 - 2² = 159165161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159165161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179814 + ... + 180696.

It is an arithmetic number, because the mean of its divisors is an integer number (8138988).

Almost surely, 2^159165165 is an apocalyptic number.

159165165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

159165165 is a deficient number, since it is larger than the sum of its proper divisors (101282451).

159165165 is a wasteful number, since it uses less digits than its factorization.

159165165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its digits is 40500, while the sum is 39.

The square root of 159165165 is about 12616.0677312703. The cubic root of 159165165 is about 541.9376718313.

It can be divided in two parts, 159165 and 165, that added together give a triangular number (159330 = T₅₆₄).

The spelling of 159165165 in words is "one hundred fifty-nine million, one hundred sixty-five thousand, one hundred sixty-five".