12557266052606 has 12 divisors (see below), whose sum is σ = 20703922128456. Its totient is φ = 5707848205620.

The previous prime is 12557266052603. The next prime is 12557266052657. The reversal of 12557266052606 is 60625066275521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12557266052603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25944764330 + ... + 25944764813.

It is an arithmetic number, because the mean of its divisors is an integer number (1725326844038).

Almost surely, 2^{12557266052606} is an apocalyptic number.

12557266052606 is a deficient number, since it is larger than the sum of its proper divisors (8146656075850).

12557266052606 is a wasteful number, since it uses less digits than its factorization.

12557266052606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51889529167 (or 51889529156 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 12557266052606 in words is "twelve trillion, five hundred fifty-seven billion, two hundred sixty-six million, fifty-two thousand, six hundred six".