13664245266313 has 6 divisors (see below), whose sum is σ = 13926925669454. Its totient is φ = 13406429315136.

The previous prime is 13664245266307. The next prime is 13664245266341. The reversal of 13664245266313 is 31366254246631.

It can be written as a sum of positive squares in 3 ways, for example, as 823396537744 + 12840848728569 = 907412^2 + 3583413^2 .

It is not a de Polignac number, because 13664245266313 - 2²⁵ = 13664211711881 is a prime.

It is a super-2 number, since 2×13664245266313² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13664245266013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2432223120 + ... + 2432228737.

Almost surely, 2^{13664245266313} is an apocalyptic number.

It is an amenable number.

13664245266313 is a deficient number, since it is larger than the sum of its proper divisors (262680403141).

13664245266313 is an frugal number, since it uses more digits than its factorization.

13664245266313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864451963 (or 4864451910 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 52.

The spelling of 13664245266313 in words is "thirteen trillion, six hundred sixty-four billion, two hundred forty-five million, two hundred sixty-six thousand, three hundred thirteen".