11122223455666 has 4 divisors (see below), whose sum is σ = 16683335183502. Its totient is φ = 5561111727832.

The previous prime is 11122223455631. The next prime is 11122223455667. The reversal of 11122223455666 is 66655432222111.

11122223455666 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 can be written as a sum of positive squares in only one way, i.e., 8849881265625 + 2272342190041 = 2974875^2 + 1507429^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11122223455667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780555863915 + ... + 2780555863918.

Almost surely, 2^{11122223455666} is an apocalyptic number.

11122223455666 is a deficient number, since it is larger than the sum of its proper divisors (5561111727836).

11122223455666 is an equidigital number, since it uses as much as digits as its factorization.

11122223455666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561111727835.

The product of its digits is 1036800, while the sum is 46.

Adding to 11122223455666 its reverse (66655432222111), we get a palindrome (77777655677777).

The spelling of 11122223455666 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-three million, four hundred fifty-five thousand, six hundred sixty-six".