165086417 has 8 divisors (see below), whose sum is σ = 169228224. Its totient is φ = 160958448.

The previous prime is 165086413. The next prime is 165086447. The reversal of 165086417 is 714680561.

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 165086417 - 2² = 165086413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165086413) 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, 23228 + ... + 29490.

It is an arithmetic number, because the mean of its divisors is an integer number (21153528).

Almost surely, 2^165086417 is an apocalyptic number.

It is an amenable number.

165086417 is a deficient number, since it is larger than the sum of its proper divisors (4141807).

165086417 is an equidigital number, since it uses as much as digits as its factorization.

165086417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 165086417 is about 12848.5959155077. The cubic root of 165086417 is about 548.5763921735.

The spelling of 165086417 in words is "one hundred sixty-five million, eighty-six thousand, four hundred seventeen".