11121666 has 8 divisors (see below), whose sum is σ = 22243344. Its totient is φ = 3707220.

The previous prime is 11121661. The next prime is 11121667. The reversal of 11121666 is 66612111.

It is a sphenic number, since it is the product of 3 distinct primes.

11121666 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11121661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926800 + ... + 926811.

It is an arithmetic number, because the mean of its divisors is an integer number (2780418).

Almost surely, 2^11121666 is an apocalyptic number.

11121666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11121666 is a wasteful number, since it uses less digits than its factorization.

11121666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853616.

The product of its digits is 432, while the sum is 24.

The square root of 11121666 is about 3334.9161908510. The cubic root of 11121666 is about 223.2149522363.

Adding to 11121666 its reverse (66612111), we get a palindrome (77733777).

The spelling of 11121666 in words is "eleven million, one hundred twenty-one thousand, six hundred sixty-six".