2666118756 has 48 divisors (see below), whose sum is σ = 7112658560. Its totient is φ = 761425920.

The previous prime is 2666118713. The next prime is 2666118769. The reversal of 2666118756 is 6578116662.

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 15 ways as a sum of consecutive naturals, for example, 251940 + ... + 262308.

Almost surely, 2^2666118756 is an apocalyptic number.

It is an amenable number.

2666118756 is an abundant number, since it is smaller than the sum of its proper divisors (4446539804).

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

2666118756 is a wasteful number, since it uses less digits than its factorization.

2666118756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444 (or 13442 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 2666118756 is about 51634.4725546800. The cubic root of 2666118756 is about 1386.6275671863.

The spelling of 2666118756 in words is "two billion, six hundred sixty-six million, one hundred eighteen thousand, seven hundred fifty-six".