11644464144 has 40 divisors (see below), whose sum is σ = 30216454912. Its totient is φ = 3864078720.

The previous prime is 11644464137. The next prime is 11644464149. The reversal of 11644464144 is 44146444611.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11644464149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533227 + ... + 554634.

Almost surely, 2^11644464144 is an apocalyptic number.

It is an amenable number.

11644464144 is an abundant number, since it is smaller than the sum of its proper divisors (18571990768).

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

11644464144 is a wasteful number, since it uses less digits than its factorization.

11644464144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088095 (or 1088089 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The spelling of 11644464144 in words is "eleven billion, six hundred forty-four million, four hundred sixty-four thousand, one hundred forty-four".