165868036 has 12 divisors (see below), whose sum is σ = 290995740. Its totient is φ = 82726400.

The previous prime is 165868033. The next prime is 165868039. The reversal of 165868036 is 630868561.

It is an interprime number because it is at equal distance from previous prime (165868033) and next prime (165868039).

It can be written as a sum of positive squares in 2 ways, for example, as 133263936 + 32604100 = 11544^2 + 5710^2 .

It is a junction number, because it is equal to n+sod(n) for n = 165867983 and 165868001.

It is not an unprimeable number, because it can be changed into a prime (165868033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50101 + ... + 53308.

It is an arithmetic number, because the mean of its divisors is an integer number (24249645).

Almost surely, 2^165868036 is an apocalyptic number.

It is an amenable number.

165868036 is a deficient number, since it is larger than the sum of its proper divisors (125127704).

165868036 is a wasteful number, since it uses less digits than its factorization.

165868036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103814 (or 103812 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 165868036 is about 12878.9765121301. The cubic root of 165868036 is about 549.4407936093.

The spelling of 165868036 in words is "one hundred sixty-five million, eight hundred sixty-eight thousand, thirty-six".