13823566663 has 2 divisors, whose sum is σ = 13823566664. Its totient is φ = 13823566662.

The previous prime is 13823566661. The next prime is 13823566693. The reversal of 13823566663 is 36666532831.

It is a weak prime.

It is an emirp because it is prime and its reverse (36666532831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13823566663 - 2¹ = 13823566661 is a prime.

Together with 13823566661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13823566661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6911783331 + 6911783332.

It is an arithmetic number, because the mean of its divisors is an integer number (6911783332).

Almost surely, 2^13823566663 is an apocalyptic number.

13823566663 is a deficient number, since it is larger than the sum of its proper divisors (1).

13823566663 is an equidigital number, since it uses as much as digits as its factorization.

13823566663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 49.

The spelling of 13823566663 in words is "thirteen billion, eight hundred twenty-three million, five hundred sixty-six thousand, six hundred sixty-three".