165112444 has 48 divisors (see below), whose sum is σ = 339897600. Its totient is φ = 68720256.

The previous prime is 165112439. The next prime is 165112447. The reversal of 165112444 is 444211561.

It is a Harshad number since it is a multiple of its sum of digits (28).

Its product of digits (3840) is a multiple of the sum of its prime divisors (1280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165112447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146467 + ... + 147589.

It is an arithmetic number, because the mean of its divisors is an integer number (7081200).

Almost surely, 2^165112444 is an apocalyptic number.

165112444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

165112444 is an abundant number, since it is smaller than the sum of its proper divisors (174785156).

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

165112444 is a wasteful number, since it uses less digits than its factorization.

165112444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1280 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 165112444 is about 12849.6087099958. The cubic root of 165112444 is about 548.6052195956.

The spelling of 165112444 in words is "one hundred sixty-five million, one hundred twelve thousand, four hundred forty-four".