165086855 has 16 divisors (see below), whose sum is σ = 201636864. Its totient is φ = 129735840.

The previous prime is 165086851. The next prime is 165086899. The reversal of 165086855 is 558680561.

165086855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165086855 - 2² = 165086851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165086851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66242 + ... + 68688.

It is an arithmetic number, because the mean of its divisors is an integer number (12602304).

Almost surely, 2^165086855 is an apocalyptic number.

165086855 is a deficient number, since it is larger than the sum of its proper divisors (36550009).

165086855 is a wasteful number, since it uses less digits than its factorization.

165086855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 165086855 is about 12848.6129601603. The cubic root of 165086855 is about 548.5768773259.

The spelling of 165086855 in words is "one hundred sixty-five million, eighty-six thousand, eight hundred fifty-five".