165085764 has 24 divisors (see below), whose sum is σ = 391516608. Its totient is φ = 54126240.

The previous prime is 165085763. The next prime is 165085771. The reversal of 165085764 is 467580561.

165085764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (165085763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112032 + ... + 113495.

It is an arithmetic number, because the mean of its divisors is an integer number (16313192).

Almost surely, 2^165085764 is an apocalyptic number.

It is an amenable number.

165085764 is an abundant number, since it is smaller than the sum of its proper divisors (226430844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165085764 is a wasteful number, since it uses less digits than its factorization.

165085764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225595 (or 225593 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 165085764 is about 12848.5705041456. The cubic root of 165085764 is about 548.5756688738.

The spelling of 165085764 in words is "one hundred sixty-five million, eighty-five thousand, seven hundred sixty-four".