12644016347140 has 48 divisors (see below), whose sum is σ = 27825801913728. Its totient is φ = 4816947855104.

The previous prime is 12644016347029. The next prime is 12644016347141. The reversal of 12644016347140 is 4174361044621.

12644016347140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12644016347140² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12644016347141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58877782 + ... + 59092141.

It is an arithmetic number, because the mean of its divisors is an integer number (579704206536).

Almost surely, 2^{12644016347140} is an apocalyptic number.

12644016347140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12644016347140 is an abundant number, since it is smaller than the sum of its proper divisors (15181785566588).

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

12644016347140 is a wasteful number, since it uses less digits than its factorization.

12644016347140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117970188 (or 117970186 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 12644016347140 in words is "twelve trillion, six hundred forty-four billion, sixteen million, three hundred forty-seven thousand, one hundred forty".