663566268222 has 192 divisors, whose sum is σ = 1765767983616. Its totient is φ = 177215258880.

The previous prime is 663566268193. The next prime is 663566268229. The reversal of 663566268222 is 222862665366.

663566268222 is a `hidden beast` number, since 6 + 6 + 3 + 5 + 6 + 626 + 8 + 2 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663566268229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32965453 + ... + 32985575.

It is an arithmetic number, because the mean of its divisors is an integer number (9196708248).

Almost surely, 2^663566268222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663566268222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882883991808).

663566268222 is an abundant number, since it is smaller than the sum of its proper divisors (1102201715394).

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

663566268222 is a wasteful number, since it uses less digits than its factorization.

663566268222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20735 (or 20732 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 54.

The spelling of 663566268222 in words is "six hundred sixty-three billion, five hundred sixty-six million, two hundred sixty-eight thousand, two hundred twenty-two".