12663740372605 has 64 divisors (see below), whose sum is σ = 18367891992576. Its totient is φ = 8197293312000.

The previous prime is 12663740372603. The next prime is 12663740372611. The reversal of 12663740372605 is 50627304736621.

It is not a de Polignac number, because 12663740372605 - 2¹ = 12663740372603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663740372603) 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 63 ways as a sum of consecutive naturals, for example, 326189095 + ... + 326227915.

It is an arithmetic number, because the mean of its divisors is an integer number (286998312384).

Almost surely, 2^{12663740372605} is an apocalyptic number.

It is an amenable number.

12663740372605 is a deficient number, since it is larger than the sum of its proper divisors (5704151619971).

12663740372605 is a wasteful number, since it uses less digits than its factorization.

12663740372605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46238.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 12663740372605 in words is "twelve trillion, six hundred sixty-three billion, seven hundred forty million, three hundred seventy-two thousand, six hundred five".