13216335113663 has 4 divisors (see below), whose sum is σ = 14417820124008. Its totient is φ = 12014850103320.

The previous prime is 13216335113587. The next prime is 13216335113671. The reversal of 13216335113663 is 36631153361231.

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 13216335113663 - 2⁸ = 13216335113407 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 (13216335113363) 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, 600742505156 + ... + 600742505177.

It is an arithmetic number, because the mean of its divisors is an integer number (3604455031002).

Almost surely, 2^{13216335113663} is an apocalyptic number.

13216335113663 is a deficient number, since it is larger than the sum of its proper divisors (1201485010345).

13216335113663 is a wasteful number, since it uses less digits than its factorization.

13216335113663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201485010344.

The product of its digits is 524880, while the sum is 44.

Adding to 13216335113663 its reverse (36631153361231), we get a palindrome (49847488474894).

The spelling of 13216335113663 in words is "thirteen trillion, two hundred sixteen billion, three hundred thirty-five million, one hundred thirteen thousand, six hundred sixty-three".