13324645663 has 4 divisors (see below), whose sum is σ = 15228166480. Its totient is φ = 11421124848.

The previous prime is 13324645651. The next prime is 13324645667. The reversal of 13324645663 is 36654642331.

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

It is not a de Polignac number, because 13324645663 - 2²⁹ = 12787774751 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 (13324645667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951760398 + ... + 951760411.

It is an arithmetic number, because the mean of its divisors is an integer number (3807041620).

Almost surely, 2^13324645663 is an apocalyptic number.

13324645663 is a deficient number, since it is larger than the sum of its proper divisors (1903520817).

13324645663 is an equidigital number, since it uses as much as digits as its factorization.

13324645663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903520816.

The product of its digits is 933120, while the sum is 43.

The spelling of 13324645663 in words is "thirteen billion, three hundred twenty-four million, six hundred forty-five thousand, six hundred sixty-three".