13663404513 has 32 divisors (see below), whose sum is σ = 22136457600. Its totient is φ = 8260531200.

The previous prime is 13663404481. The next prime is 13663404527. The reversal of 13663404513 is 31540436631.

13663404513 is a `hidden beast` number, since 1 + 3 + 6 + 634 + 0 + 4 + 5 + 13 = 666.

It is not a de Polignac number, because 13663404513 - 2⁵ = 13663404481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13663404553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65233 + ... + 177713.

It is an arithmetic number, because the mean of its divisors is an integer number (691764300).

Almost surely, 2^13663404513 is an apocalyptic number.

It is an amenable number.

13663404513 is a deficient number, since it is larger than the sum of its proper divisors (8473053087).

13663404513 is a wasteful number, since it uses less digits than its factorization.

13663404513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112910 (or 112904 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 13663404513 in words is "thirteen billion, six hundred sixty-three million, four hundred four thousand, five hundred thirteen".