2666268844666 has 16 divisors (see below), whose sum is σ = 4570815009600. Its totient is φ = 1142669543040.

The previous prime is 2666268844637. The next prime is 2666268844747. The reversal of 2666268844666 is 6664488626662.

It is a junction number, because it is equal to n+sod(n) for n = 2666268844595 and 2666268844604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432880 + ... + 2349451.

It is an arithmetic number, because the mean of its divisors is an integer number (285675938100).

Almost surely, 2^{2666268844666} is an apocalyptic number.

2666268844666 is a deficient number, since it is larger than the sum of its proper divisors (1904546164934).

2666268844666 is a wasteful number, since it uses less digits than its factorization.

2666268844666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850789.

The product of its digits is 1146617856, while the sum is 70.

The spelling of 2666268844666 in words is "two trillion, six hundred sixty-six billion, two hundred sixty-eight million, eight hundred forty-four thousand, six hundred sixty-six".