11056566623 has 2 divisors, whose sum is σ = 11056566624. Its totient is φ = 11056566622.

The previous prime is 11056566589. The next prime is 11056566629. The reversal of 11056566623 is 32666565011.

11056566623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11056566623 - 2¹⁰ = 11056565599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11056566629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528283311 + 5528283312.

It is an arithmetic number, because the mean of its divisors is an integer number (5528283312).

Almost surely, 2^11056566623 is an apocalyptic number.

11056566623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11056566623 is an equidigital number, since it uses as much as digits as its factorization.

11056566623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 11056566623 in words is "eleven billion, fifty-six million, five hundred sixty-six thousand, six hundred twenty-three".