22566662216 has 64 divisors (see below), whose sum is σ = 50946000000. Its totient is φ = 9154529280.

The previous prime is 22566662191. The next prime is 22566662219. The reversal of 22566662216 is 61226666522.

It is not an unprimeable number, because it can be changed into a prime (22566662219) 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, 1320446 + ... + 1337426.

It is an arithmetic number, because the mean of its divisors is an integer number (796031250).

Almost surely, 2^22566662216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22566662216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25473000000).

22566662216 is an abundant number, since it is smaller than the sum of its proper divisors (28379337784).

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

22566662216 is a wasteful number, since it uses less digits than its factorization.

22566662216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18262 (or 18258 counting only the distinct ones).

The product of its digits is 622080, while the sum is 44.

The spelling of 22566662216 in words is "twenty-two billion, five hundred sixty-six million, six hundred sixty-two thousand, two hundred sixteen".