12766552172644 has 96 divisors (see below), whose sum is σ = 23866609536000. Its totient is φ = 5966450979840.

The previous prime is 12766552172629. The next prime is 12766552172663. The reversal of 12766552172644 is 44627125566721.

It is a happy number.

12766552172644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178770057 + ... + 178841455.

It is an arithmetic number, because the mean of its divisors is an integer number (248610516000).

Almost surely, 2^{12766552172644} is an apocalyptic number.

It is an amenable number.

12766552172644 is a deficient number, since it is larger than the sum of its proper divisors (11100057363356).

12766552172644 is a wasteful number, since it uses less digits than its factorization.

12766552172644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71933 (or 71931 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 58.

The spelling of 12766552172644 in words is "twelve trillion, seven hundred sixty-six billion, five hundred fifty-two million, one hundred seventy-two thousand, six hundred forty-four".