11065666 has 4 divisors (see below), whose sum is σ = 16598502. Its totient is φ = 5532832.

The previous prime is 11065597. The next prime is 11065673. The reversal of 11065666 is 66656011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66656011 = 47 ⋅1418213.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 3530641 = 2745^2 + 1879^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766415 + ... + 2766418.

Almost surely, 2^11065666 is an apocalyptic number.

11065666 is a deficient number, since it is larger than the sum of its proper divisors (5532836).

11065666 is an equidigital number, since it uses as much as digits as its factorization.

11065666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532835.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 11065666 is about 3326.5095821296. The cubic root of 11065666 is about 222.8396764355.

The spelling of 11065666 in words is "eleven million, sixty-five thousand, six hundred sixty-six".