13196851663 has 4 divisors (see below), whose sum is σ = 13203416008. Its totient is φ = 13190287320.

The previous prime is 13196851651. The next prime is 13196851667. The reversal of 13196851663 is 36615869131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36615869131 = 263 ⋅139223837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13196851663 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 (13196851667) 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, 3279156 + ... + 3283177.

It is an arithmetic number, because the mean of its divisors is an integer number (3300854002).

Almost surely, 2^13196851663 is an apocalyptic number.

13196851663 is a deficient number, since it is larger than the sum of its proper divisors (6564345).

13196851663 is an equidigital number, since it uses as much as digits as its factorization.

13196851663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564344.

The product of its digits is 699840, while the sum is 49.

The spelling of 13196851663 in words is "thirteen billion, one hundred ninety-six million, eight hundred fifty-one thousand, six hundred sixty-three".