11111233345666 has 8 divisors (see below), whose sum is σ = 16838673214860. Its totient is φ = 5498342274048.

The previous prime is 11111233345649. The next prime is 11111233345679. The reversal of 11111233345666 is 66654333211111.

It can be written as a sum of positive squares in 2 ways, for example, as 10530810304641 + 580423041025 = 3245121^2 + 761855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28637199151 + ... + 28637199538.

Almost surely, 2^{11111233345666} is an apocalyptic number.

11111233345666 is a deficient number, since it is larger than the sum of its proper divisors (5727439869194).

11111233345666 is an equidigital number, since it uses as much as digits as its factorization.

11111233345666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57274398788.

The product of its digits is 233280, while the sum is 43.

Adding to 11111233345666 its reverse (66654333211111), we get a palindrome (77765566556777).

The spelling of 11111233345666 in words is "eleven trillion, one hundred eleven billion, two hundred thirty-three million, three hundred forty-five thousand, six hundred sixty-six".