11994166 has 4 divisors (see below), whose sum is σ = 17991252. Its totient is φ = 5997082.

The previous prime is 11994161. The next prime is 11994193. The reversal of 11994166 is 66149911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66149911 = 643 ⋅102877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2998540 + ... + 2998543.

It is an arithmetic number, because the mean of its divisors is an integer number (4497813).

Almost surely, 2^11994166 is an apocalyptic number.

11994166 is a deficient number, since it is larger than the sum of its proper divisors (5997086).

11994166 is an equidigital number, since it uses as much as digits as its factorization.

11994166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5997085.

The product of its digits is 11664, while the sum is 37.

The square root of 11994166 is about 3463.2594473992. The cubic root of 11994166 is about 228.9057410360.

The spelling of 11994166 in words is "eleven million, nine hundred ninety-four thousand, one hundred sixty-six".