13296646471649 has 2 divisors, whose sum is σ = 13296646471650. Its totient is φ = 13296646471648.

The previous prime is 13296646471613. The next prime is 13296646471697. The reversal of 13296646471649 is 94617464669231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12255495616225 + 1041150855424 = 3500785^2 + 1020368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13296646471649 is a prime.

It is not a weakly prime, because it can be changed into another prime (13296646474649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6648323235824 + 6648323235825.

It is an arithmetic number, because the mean of its divisors is an integer number (6648323235825).

Almost surely, 2^{13296646471649} is an apocalyptic number.

It is an amenable number.

13296646471649 is a deficient number, since it is larger than the sum of its proper divisors (1).

13296646471649 is an equidigital number, since it uses as much as digits as its factorization.

13296646471649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282175488, while the sum is 68.

The spelling of 13296646471649 in words is "thirteen trillion, two hundred ninety-six billion, six hundred forty-six million, four hundred seventy-one thousand, six hundred forty-nine".