11954666 has 4 divisors (see below), whose sum is σ = 17932002. Its totient is φ = 5977332.

The previous prime is 11954659. The next prime is 11954669. The reversal of 11954666 is 66645911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66645911 = 677 ⋅98443.

It can be written as a sum of positive squares in only one way, i.e., 6869641 + 5085025 = 2621^2 + 2255^2 .

It is not an unprimeable number, because it can be changed into a prime (11954669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2988665 + ... + 2988668.

Almost surely, 2^11954666 is an apocalyptic number.

11954666 is a deficient number, since it is larger than the sum of its proper divisors (5977336).

11954666 is an equidigital number, since it uses as much as digits as its factorization.

11954666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977335.

The product of its digits is 38880, while the sum is 38.

The square root of 11954666 is about 3457.5520241928. The cubic root of 11954666 is about 228.6541820521.

The spelling of 11954666 in words is "eleven million, nine hundred fifty-four thousand, six hundred sixty-six".