11771966 has 4 divisors (see below), whose sum is σ = 17657952. Its totient is φ = 5885982.

The previous prime is 11771959. The next prime is 11771983. The reversal of 11771966 is 66917711.

11771966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2942990 + ... + 2942993.

It is an arithmetic number, because the mean of its divisors is an integer number (4414488).

Almost surely, 2^11771966 is an apocalyptic number.

11771966 is a deficient number, since it is larger than the sum of its proper divisors (5885986).

11771966 is an equidigital number, since it uses as much as digits as its factorization.

11771966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885985.

The product of its digits is 15876, while the sum is 38.

The square root of 11771966 is about 3431.0298745420. The cubic root of 11771966 is about 227.4833767993.

The spelling of 11771966 in words is "eleven million, seven hundred seventy-one thousand, nine hundred sixty-six".