22499773866 has 24 divisors (see below), whose sum is σ = 50555048544. Its totient is φ = 7499924460.

The previous prime is 22499773831. The next prime is 22499773957. The reversal of 22499773866 is 66837799422.

22499773866 is a `hidden beast` number, since 2 + 249 + 9 + 7 + 7 + 386 + 6 = 666.

It is a super-2 number, since 2×22499773866² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23147430 + ... + 23148401.

It is an arithmetic number, because the mean of its divisors is an integer number (2106460356).

Almost surely, 2^22499773866 is an apocalyptic number.

22499773866 is an abundant number, since it is smaller than the sum of its proper divisors (28055274678).

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

22499773866 is an equidigital number, since it uses as much as digits as its factorization.

22499773866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46295848 (or 46295836 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 22499773866 in words is "twenty-two billion, four hundred ninety-nine million, seven hundred seventy-three thousand, eight hundred sixty-six".