11022165666 has 32 divisors (see below), whose sum is σ = 24559413120. Its totient is φ = 3664198512.

The previous prime is 11022165647. The next prime is 11022165667. The reversal of 11022165666 is 66656122011.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11022165666.

It is not an unprimeable number, because it can be changed into a prime (11022165667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253470 + ... + 293753.

It is an arithmetic number, because the mean of its divisors is an integer number (767481660).

Almost surely, 2^11022165666 is an apocalyptic number.

11022165666 is an abundant number, since it is smaller than the sum of its proper divisors (13537247454).

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

11022165666 is a wasteful number, since it uses less digits than its factorization.

11022165666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547607 (or 547601 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 11022165666 its reverse (66656122011), we get a palindrome (77678287677).

The spelling of 11022165666 in words is "eleven billion, twenty-two million, one hundred sixty-five thousand, six hundred sixty-six".