12344555656 has 8 divisors (see below), whose sum is σ = 23146041870. Its totient is φ = 6172277824.

The previous prime is 12344555621. The next prime is 12344555669. The reversal of 12344555656 is 65655544321.

It can be written as a sum of positive squares in only one way, i.e., 9767368900 + 2577186756 = 98830^2 + 50766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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 as a sum of consecutive naturals, namely, 771534721 + ... + 771534736.

Almost surely, 2^12344555656 is an apocalyptic number.

It is an amenable number.

12344555656 is a deficient number, since it is larger than the sum of its proper divisors (10801486214).

12344555656 is a wasteful number, since it uses less digits than its factorization.

12344555656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543069463 (or 1543069459 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 46.

It can be divided in two parts, 123445 and 55656, that added together give a triangular number (179101 = T₅₉₈).

The spelling of 12344555656 in words is "twelve billion, three hundred forty-four million, five hundred fifty-five thousand, six hundred fifty-six".