12444656556 has 24 divisors (see below), whose sum is σ = 30565823680. Its totient is φ = 3929891472.

The previous prime is 12444656473. The next prime is 12444656561. The reversal of 12444656556 is 65565644421.

It is a happy number.

12444656556 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 2×12444656556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27290686 + ... + 27291141.

Almost surely, 2^12444656556 is an apocalyptic number.

It is an amenable number.

12444656556 is an abundant number, since it is smaller than the sum of its proper divisors (18121167124).

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

12444656556 is a wasteful number, since it uses less digits than its factorization.

12444656556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54581853 (or 54581851 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 48.

The spelling of 12444656556 in words is "twelve billion, four hundred forty-four million, six hundred fifty-six thousand, five hundred fifty-six".