165000044 has 12 divisors (see below), whose sum is σ = 315000168. Its totient is φ = 75000000.

The previous prime is 165000041. The next prime is 165000071. The reversal of 165000044 is 440000561.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (165000041) 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, 1874957 + ... + 1875044.

It is an arithmetic number, because the mean of its divisors is an integer number (26250014).

Almost surely, 2^165000044 is an apocalyptic number.

It is an amenable number.

165000044 is a deficient number, since it is larger than the sum of its proper divisors (150000124).

165000044 is a wasteful number, since it uses less digits than its factorization.

165000044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750016 (or 3750014 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 165000044 is about 12845.2342913627. The cubic root of 165000044 is about 548.4807039971.

The spelling of 165000044 in words is "one hundred sixty-five million, forty-four", and thus it is an aban number.