165959085 has 16 divisors (see below), whose sum is σ = 265734144. Its totient is φ = 88444992.

The previous prime is 165959077. The next prime is 165959111. The reversal of 165959085 is 580959561.

It is a happy number.

It is not a de Polignac number, because 165959085 - 2³ = 165959077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21619 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (16608384).

Almost surely, 2^165959085 is an apocalyptic number.

165959085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165959085 is a deficient number, since it is larger than the sum of its proper divisors (99775059).

165959085 is a wasteful number, since it uses less digits than its factorization.

165959085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8324.

The product of its (nonzero) digits is 486000, while the sum is 48.

The square root of 165959085 is about 12882.5108189359. The cubic root of 165959085 is about 549.5413090257.

The spelling of 165959085 in words is "one hundred sixty-five million, nine hundred fifty-nine thousand, eighty-five".