11321082666 has 32 divisors (see below), whose sum is σ = 25163397120. Its totient is φ = 3772878912.

The previous prime is 11321082623. The next prime is 11321082667. The reversal of 11321082666 is 66628012311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11321082666.

It is not an unprimeable number, because it can be changed into a prime (11321082667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262551 + ... + 302613.

It is an arithmetic number, because the mean of its divisors is an integer number (786356160).

Almost surely, 2^11321082666 is an apocalyptic number.

11321082666 is an abundant number, since it is smaller than the sum of its proper divisors (13842314454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11321082666 is a wasteful number, since it uses less digits than its factorization.

11321082666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45307 (or 45301 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

Adding to 11321082666 its reverse (66628012311), we get a palindrome (77949094977).

The spelling of 11321082666 in words is "eleven billion, three hundred twenty-one million, eighty-two thousand, six hundred sixty-six".