11066815 has 4 divisors (see below), whose sum is σ = 13280184. Its totient is φ = 8853448.

The previous prime is 11066791. The next prime is 11066819. The reversal of 11066815 is 51866011.

11066815 is digitally balanced in base 3, 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: 51866011 = 1753 ⋅29587.

It is a cyclic number.

It is not a de Polignac number, because 11066815 - 2¹³ = 11058623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106677 + ... + 1106686.

It is an arithmetic number, because the mean of its divisors is an integer number (3320046).

Almost surely, 2^11066815 is an apocalyptic number.

11066815 is a deficient number, since it is larger than the sum of its proper divisors (2213369).

11066815 is an equidigital number, since it uses as much as digits as its factorization.

11066815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213368.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11066815 is about 3326.6822811925. The cubic root of 11066815 is about 222.8473889981.

It can be divided in two parts, 11066 and 815, that added together give a square (11881 = 109²).

The spelling of 11066815 in words is "eleven million, sixty-six thousand, eight hundred fifteen".