12355104522566 has 16 divisors (see below), whose sum is σ = 19958430156000. Its totient is φ = 5702303251008.

The previous prime is 12355104522559. The next prime is 12355104522599. The reversal of 12355104522566 is 66522540155321.

12355104522566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12355104522566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747695 + ... + 5026853.

It is an arithmetic number, because the mean of its divisors is an integer number (1247401884750).

Almost surely, 2^{12355104522566} is an apocalyptic number.

12355104522566 is a deficient number, since it is larger than the sum of its proper divisors (7603325633434).

12355104522566 is a wasteful number, since it uses less digits than its factorization.

12355104522566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4390223.

The product of its (nonzero) digits is 2160000, while the sum is 47.

Adding to 12355104522566 its reverse (66522540155321), we get a palindrome (78877644677887).

The spelling of 12355104522566 in words is "twelve trillion, three hundred fifty-five billion, one hundred four million, five hundred twenty-two thousand, five hundred sixty-six".