162665165 has 8 divisors (see below), whose sum is σ = 210213528. Its totient is φ = 120121920.

The previous prime is 162665159. The next prime is 162665171. The reversal of 162665165 is 561566261.

It is an interprime number because it is at equal distance from previous prime (162665159) and next prime (162665171).

It can be written as a sum of positive squares in 4 ways, for example, as 128164 + 162537001 = 358^2 + 12749^2 .

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

It is not a de Polignac number, because 162665165 - 2⁴ = 162665149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1251206 + ... + 1251335.

It is an arithmetic number, because the mean of its divisors is an integer number (26276691).

Almost surely, 2^162665165 is an apocalyptic number.

It is an amenable number.

162665165 is a deficient number, since it is larger than the sum of its proper divisors (47548363).

162665165 is a wasteful number, since it uses less digits than its factorization.

162665165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502559.

The product of its digits is 64800, while the sum is 38.

The square root of 162665165 is about 12754.0254429729. The cubic root of 162665165 is about 545.8812608823.

The spelling of 162665165 in words is "one hundred sixty-two million, six hundred sixty-five thousand, one hundred sixty-five".