13663404567 has 20 divisors (see below), whose sum is σ = 20414079400. Its totient is φ = 9107457264.

The previous prime is 13663404553. The next prime is 13663404589. The reversal of 13663404567 is 76540436631.

13663404567 is a `hidden beast` number, since 1 + 3 + 6 + 634 + 0 + 4 + 5 + 6 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-13663404567 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 (13663404527) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 748248 + ... + 766290.

It is an arithmetic number, because the mean of its divisors is an integer number (1020703970).

Almost surely, 2^13663404567 is an apocalyptic number.

13663404567 is a deficient number, since it is larger than the sum of its proper divisors (6750674833).

13663404567 is an equidigital number, since it uses as much as digits as its factorization.

13663404567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27404 (or 27395 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 13663404567 in words is "thirteen billion, six hundred sixty-three million, four hundred four thousand, five hundred sixty-seven".