13196851665 has 8 divisors (see below), whose sum is σ = 21114962688. Its totient is φ = 7038320880.

The previous prime is 13196851651. The next prime is 13196851667. The reversal of 13196851665 is 56615869131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13196851665 - 2⁶ = 13196851601 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13196851667) 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 7 ways as a sum of consecutive naturals, for example, 439895041 + ... + 439895070.

It is an arithmetic number, because the mean of its divisors is an integer number (2639370336).

Almost surely, 2^13196851665 is an apocalyptic number.

13196851665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13196851665 is a deficient number, since it is larger than the sum of its proper divisors (7918111023).

13196851665 is an equidigital number, since it uses as much as digits as its factorization.

13196851665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879790119.

The product of its digits is 1166400, while the sum is 51.

The spelling of 13196851665 in words is "thirteen billion, one hundred ninety-six million, eight hundred fifty-one thousand, six hundred sixty-five".