12540553244 has 12 divisors (see below), whose sum is σ = 21946755600. Its totient is φ = 6270051648.

The previous prime is 12540553241. The next prime is 12540553253. The reversal of 12540553244 is 44235504521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540553241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172937 + ... + 234495.

It is an arithmetic number, because the mean of its divisors is an integer number (1828896300).

Almost surely, 2^12540553244 is an apocalyptic number.

It is an amenable number.

12540553244 is a deficient number, since it is larger than the sum of its proper divisors (9406202356).

12540553244 is a wasteful number, since it uses less digits than its factorization.

12540553244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112492 (or 112490 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 12540553244 in words is "twelve billion, five hundred forty million, five hundred fifty-three thousand, two hundred forty-four".