12663403563 has 16 divisors (see below), whose sum is σ = 16962720896. Its totient is φ = 8403212160.

The previous prime is 12663403531. The next prime is 12663403567. The reversal of 12663403563 is 36530436621.

12663403563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12663403563 - 2⁵ = 12663403531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12663403567) 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 in 15 ways as a sum of consecutive naturals, for example, 2822520 + ... + 2827002.

It is an arithmetic number, because the mean of its divisors is an integer number (1060170056).

Almost surely, 2^12663403563 is an apocalyptic number.

12663403563 is a deficient number, since it is larger than the sum of its proper divisors (4299317333).

12663403563 is a wasteful number, since it uses less digits than its factorization.

12663403563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8634.

The product of its (nonzero) digits is 233280, while the sum is 39.

The spelling of 12663403563 in words is "twelve billion, six hundred sixty-three million, four hundred three thousand, five hundred sixty-three".