3665889144 has 64 divisors (see below), whose sum is σ = 10244102400. Its totient is φ = 1214633952.

The previous prime is 3665889119. The next prime is 3665889151. The reversal of 3665889144 is 4419885663.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14742 + ... + 86885.

It is an arithmetic number, because the mean of its divisors is an integer number (160064100).

Almost surely, 2^3665889144 is an apocalyptic number.

It is an amenable number.

3665889144 is an abundant number, since it is smaller than the sum of its proper divisors (6578213256).

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

3665889144 is a wasteful number, since it uses less digits than its factorization.

3665889144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101809 (or 101799 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 3665889144 is about 60546.5865594420. The cubic root of 3665889144 is about 1541.9126659496.

The spelling of 3665889144 in words is "three billion, six hundred sixty-five million, eight hundred eighty-nine thousand, one hundred forty-four".