165585004 has 24 divisors (see below), whose sum is σ = 325634400. Its totient is φ = 73100544.

The previous prime is 165584999. The next prime is 165585011. The reversal of 165585004 is 400585561.

It is a happy number.

165585004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68029 + ... + 70420.

It is an arithmetic number, because the mean of its divisors is an integer number (13568100).

Almost surely, 2^165585004 is an apocalyptic number.

It is an amenable number.

165585004 is a deficient number, since it is larger than the sum of its proper divisors (160049396).

165585004 is a wasteful number, since it uses less digits than its factorization.

165585004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138489 (or 138487 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 165585004 is about 12867.9836804373. The cubic root of 165585004 is about 549.1280995213.

The spelling of 165585004 in words is "one hundred sixty-five million, five hundred eighty-five thousand, four".