13196851664 has 20 divisors (see below), whose sum is σ = 27072953604. Its totient is φ = 6210283008.

The previous prime is 13196851651. The next prime is 13196851667. The reversal of 13196851664 is 46615869131.

It can be written as a sum of positive squares in 2 ways, for example, as 10463653264 + 2733198400 = 102292^2 + 52280^2 .

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, 24258647 + ... + 24259190.

Almost surely, 2^13196851664 is an apocalyptic number.

It is an amenable number.

13196851664 is an abundant number, since it is smaller than the sum of its proper divisors (13876101940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13196851664 is a wasteful number, since it uses less digits than its factorization.

13196851664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48517862 (or 48517856 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The spelling of 13196851664 in words is "thirteen billion, one hundred ninety-six million, eight hundred fifty-one thousand, six hundred sixty-four".