11666112266 has 16 divisors (see below), whose sum is σ = 18563986944. Its totient is φ = 5479429824.

The previous prime is 11666112259. The next prime is 11666112301. The reversal of 11666112266 is 66221166611.

It is a happy number.

It is a Curzon number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310250 + ... + 345813.

It is an arithmetic number, because the mean of its divisors is an integer number (1160249184).

Almost surely, 2^11666112266 is an apocalyptic number.

11666112266 is a deficient number, since it is larger than the sum of its proper divisors (6897874678).

11666112266 is a wasteful number, since it uses less digits than its factorization.

11666112266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656605.

The product of its digits is 31104, while the sum is 38.

Adding to 11666112266 its reverse (66221166611), we get a palindrome (77887278877).

The spelling of 11666112266 in words is "eleven billion, six hundred sixty-six million, one hundred twelve thousand, two hundred sixty-six".