11426566 has 4 divisors (see below), whose sum is σ = 17139852. Its totient is φ = 5713282.

The previous prime is 11426557. The next prime is 11426603. The reversal of 11426566 is 66562411.

11426566 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: 66562411 = 103 ⋅646237.

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 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, 2856640 + ... + 2856643.

It is an arithmetic number, because the mean of its divisors is an integer number (4284963).

Almost surely, 2^11426566 is an apocalyptic number.

11426566 is a deficient number, since it is larger than the sum of its proper divisors (5713286).

11426566 is an equidigital number, since it uses as much as digits as its factorization.

11426566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713285.

The product of its digits is 8640, while the sum is 31.

The square root of 11426566 is about 3380.3203990155. The cubic root of 11426566 is about 225.2364000949.

Adding to 11426566 its reverse (66562411), we get a palindrome (77988977).

The spelling of 11426566 in words is "eleven million, four hundred twenty-six thousand, five hundred sixty-six".