2666318318293 has 24 divisors (see below), whose sum is σ = 3175504601280. Its totient is φ = 2231044119360.

The previous prime is 2666318318291. The next prime is 2666318318297. The reversal of 2666318318293 is 3928138136662.

2666318318293 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2666318318293 - 2¹ = 2666318318291 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666318318291) 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 23 ways as a sum of consecutive naturals, for example, 3512353 + ... + 4203481.

It is an arithmetic number, because the mean of its divisors is an integer number (132312691720).

Almost surely, 2^{2666318318293} is an apocalyptic number.

It is an amenable number.

2666318318293 is a deficient number, since it is larger than the sum of its proper divisors (509186282987).

2666318318293 is a wasteful number, since it uses less digits than its factorization.

2666318318293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693017 (or 693010 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 58.

The spelling of 2666318318293 in words is "two trillion, six hundred sixty-six billion, three hundred eighteen million, three hundred eighteen thousand, two hundred ninety-three".