165585536 has 32 divisors (see below), whose sum is σ = 330480000. Its totient is φ = 82641664.

The previous prime is 165585529. The next prime is 165585569. The reversal of 165585536 is 635585561.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109715 + ... + 111213.

It is an arithmetic number, because the mean of its divisors is an integer number (10327500).

Almost surely, 2^165585536 is an apocalyptic number.

165585536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

165585536 is a deficient number, since it is larger than the sum of its proper divisors (164894464).

165585536 is an equidigital number, since it uses as much as digits as its factorization.

165585536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2364 counting only the distinct ones).

The product of its digits is 540000, while the sum is 44.

The square root of 165585536 is about 12868.0043518799. The cubic root of 165585536 is about 549.1286876097.

The spelling of 165585536 in words is "one hundred sixty-five million, five hundred eighty-five thousand, five hundred thirty-six".