11406566 has 4 divisors (see below), whose sum is σ = 17109852. Its totient is φ = 5703282.

The previous prime is 11406557. The next prime is 11406581. The reversal of 11406566 is 66560411.

11406566 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, and also an emirpimes, since its reverse is a distinct semiprime: 66560411 = 233 ⋅285667.

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, 2851640 + ... + 2851643.

It is an arithmetic number, because the mean of its divisors is an integer number (4277463).

Almost surely, 2^11406566 is an apocalyptic number.

11406566 is a deficient number, since it is larger than the sum of its proper divisors (5703286).

11406566 is an equidigital number, since it uses as much as digits as its factorization.

11406566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703285.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 11406566 is about 3377.3608039414. The cubic root of 11406566 is about 225.1049123910.

Adding to 11406566 its reverse (66560411), we get a palindrome (77966977).

The spelling of 11406566 in words is "eleven million, four hundred six thousand, five hundred sixty-six".