12663835633 has 2 divisors, whose sum is σ = 12663835634. Its totient is φ = 12663835632.

The previous prime is 12663835601. The next prime is 12663835651. The reversal of 12663835633 is 33653836621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9071991009 + 3591844624 = 95247^2 + 59932^2 .

It is a cyclic number.

It is not a de Polignac number, because 12663835633 - 2⁵ = 12663835601 is a prime.

It is not a weakly prime, because it can be changed into another prime (12663835663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331917816 + 6331917817.

It is an arithmetic number, because the mean of its divisors is an integer number (6331917817).

Almost surely, 2^12663835633 is an apocalyptic number.

It is an amenable number.

12663835633 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663835633 is an equidigital number, since it uses as much as digits as its factorization.

12663835633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 46.

The spelling of 12663835633 in words is "twelve billion, six hundred sixty-three million, eight hundred thirty-five thousand, six hundred thirty-three".