12644114120 has 32 divisors (see below), whose sum is σ = 31035553920. Its totient is φ = 4597859520.

The previous prime is 12644114117. The next prime is 12644114143. The reversal of 12644114120 is 2141144621.

It is a self number, because there is not a number n which added to its sum of digits gives 12644114120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14367872 + ... + 14368751.

It is an arithmetic number, because the mean of its divisors is an integer number (969861060).

Almost surely, 2^12644114120 is an apocalyptic number.

12644114120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12644114120 is an abundant number, since it is smaller than the sum of its proper divisors (18391439800).

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

12644114120 is a wasteful number, since it uses less digits than its factorization.

12644114120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28736645 (or 28736641 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 12644114120 its reverse (2141144621), we get a palindrome (14785258741).

The spelling of 12644114120 in words is "twelve billion, six hundred forty-four million, one hundred fourteen thousand, one hundred twenty".