2245563223266 has 64 divisors (see below), whose sum is σ = 4941030989952. Its totient is φ = 680318144000.

The previous prime is 2245563223223. The next prime is 2245563223271. The reversal of 2245563223266 is 6623223655422.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37672126 + ... + 37731686.

It is an arithmetic number, because the mean of its divisors is an integer number (77203609218).

Almost surely, 2^{2245563223266} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2245563223266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2470515494976).

2245563223266 is an abundant number, since it is smaller than the sum of its proper divisors (2695467766686).

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

2245563223266 is a wasteful number, since it uses less digits than its factorization.

2245563223266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64320 (or 64298 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 48.

Adding to 2245563223266 its reverse (6623223655422), we get a palindrome (8868786878688).

The spelling of 2245563223266 in words is "two trillion, two hundred forty-five billion, five hundred sixty-three million, two hundred twenty-three thousand, two hundred sixty-six".