12445567780111 has 16 divisors (see below), whose sum is σ = 13119664348800. Its totient is φ = 11787870302208.

The previous prime is 12445567780109. The next prime is 12445567780127. The reversal of 12445567780111 is 11108776554421.

12445567780111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12445567780111 - 2¹ = 12445567780109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445567787111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9414970 + ... + 10655176.

It is an arithmetic number, because the mean of its divisors is an integer number (819979021800).

Almost surely, 2^{12445567780111} is an apocalyptic number.

12445567780111 is a deficient number, since it is larger than the sum of its proper divisors (674096568689).

12445567780111 is a wasteful number, since it uses less digits than its factorization.

12445567780111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246818.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 12445567780111 in words is "twelve trillion, four hundred forty-five billion, five hundred sixty-seven million, seven hundred eighty thousand, one hundred eleven".