12655123564 has 12 divisors (see below), whose sum is σ = 22222053504. Its totient is φ = 6305965424.

The previous prime is 12655123543. The next prime is 12655123577. The reversal of 12655123564 is 46532155621.

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 3 ways as a sum of consecutive naturals, for example, 5397772 + ... + 5400115.

It is an arithmetic number, because the mean of its divisors is an integer number (1851837792).

Almost surely, 2^12655123564 is an apocalyptic number.

It is an amenable number.

12655123564 is a deficient number, since it is larger than the sum of its proper divisors (9566929940).

12655123564 is a wasteful number, since it uses less digits than its factorization.

12655123564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798184 (or 10798182 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The spelling of 12655123564 in words is "twelve billion, six hundred fifty-five million, one hundred twenty-three thousand, five hundred sixty-four".