12513135466668 has 48 divisors (see below), whose sum is σ = 30485042138880. Its totient is φ = 3987301881024.

The previous prime is 12513135466661. The next prime is 12513135466693. The reversal of 12513135466668 is 86666453131521.

It is a super-2 number, since 2×12513135466668² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12513135466661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13138423 + ... + 14058606.

It is an arithmetic number, because the mean of its divisors is an integer number (635105044560).

Almost surely, 2^{12513135466668} is an apocalyptic number.

It is an amenable number.

12513135466668 is an abundant number, since it is smaller than the sum of its proper divisors (17971906672212).

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

12513135466668 is a wasteful number, since it uses less digits than its factorization.

12513135466668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27198726 (or 27198724 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 57.

The spelling of 12513135466668 in words is "twelve trillion, five hundred thirteen billion, one hundred thirty-five million, four hundred sixty-six thousand, six hundred sixty-eight".