11021199966 has 48 divisors (see below), whose sum is σ = 27664457184. Its totient is φ = 3105775872.

The previous prime is 11021199877. The next prime is 11021199997. The reversal of 11021199966 is 66999112011.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589911 + ... + 608306.

It is an arithmetic number, because the mean of its divisors is an integer number (576342858).

Almost surely, 2^11021199966 is an apocalyptic number.

11021199966 is an abundant number, since it is smaller than the sum of its proper divisors (16643257218).

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

11021199966 is a wasteful number, since it uses less digits than its factorization.

11021199966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198305 (or 1198302 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The spelling of 11021199966 in words is "eleven billion, twenty-one million, one hundred ninety-nine thousand, nine hundred sixty-six".