13663480191 has 4 divisors (see below), whose sum is σ = 18217973592. Its totient is φ = 9108986792.

The previous prime is 13663480087. The next prime is 13663480199. The reversal of 13663480191 is 19108436631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13663480191 - 2⁷ = 13663480063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663480199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277246696 + ... + 2277246701.

It is an arithmetic number, because the mean of its divisors is an integer number (4554493398).

Almost surely, 2^13663480191 is an apocalyptic number.

13663480191 is a deficient number, since it is larger than the sum of its proper divisors (4554493401).

13663480191 is an equidigital number, since it uses as much as digits as its factorization.

13663480191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554493400.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 13663480191 in words is "thirteen billion, six hundred sixty-three million, four hundred eighty thousand, one hundred ninety-one".