22285815866 has 16 divisors (see below), whose sum is σ = 34738675200. Its totient is φ = 10711082640.

The previous prime is 22285815859. The next prime is 22285815883. The reversal of 22285815866 is 66851858222.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1196966 + ... + 1215441.

It is an arithmetic number, because the mean of its divisors is an integer number (2171167200).

Almost surely, 2^22285815866 is an apocalyptic number.

22285815866 is a deficient number, since it is larger than the sum of its proper divisors (12452859334).

22285815866 is a wasteful number, since it uses less digits than its factorization.

22285815866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412589.

The product of its digits is 3686400, while the sum is 53.

The spelling of 22285815866 in words is "twenty-two billion, two hundred eighty-five million, eight hundred fifteen thousand, eight hundred sixty-six".