11772666 has 48 divisors (see below), whose sum is σ = 27799200. Its totient is φ = 3586464.

The previous prime is 11772613. The next prime is 11772689. The reversal of 11772666 is 66627711.

It is a self number, because there is not a number n which added to its sum of digits gives 11772666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9325 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (579150).

Almost surely, 2^11772666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11772666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13899600).

11772666 is an abundant number, since it is smaller than the sum of its proper divisors (16026534).

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

11772666 is a wasteful number, since it uses less digits than its factorization.

11772666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1240 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 11772666 is about 3431.1318832129. The cubic root of 11772666 is about 227.4878856811.

The spelling of 11772666 in words is "eleven million, seven hundred seventy-two thousand, six hundred sixty-six".