12144332144 has 80 divisors (see below), whose sum is σ = 28510675200. Its totient is φ = 4895188992.

The previous prime is 12144332129. The next prime is 12144332171. The reversal of 12144332144 is 44123344121.

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, 275264 + ... + 316320.

It is an arithmetic number, because the mean of its divisors is an integer number (356383440).

Almost surely, 2^12144332144 is an apocalyptic number.

12144332144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12144332144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14255337600).

12144332144 is an abundant number, since it is smaller than the sum of its proper divisors (16366343056).

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

12144332144 is a wasteful number, since it uses less digits than its factorization.

12144332144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41230 (or 41224 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 12144332144 its reverse (44123344121), we get a palindrome (56267676265).

The spelling of 12144332144 in words is "twelve billion, one hundred forty-four million, three hundred thirty-two thousand, one hundred forty-four".