6622222266 has 72 divisors (see below), whose sum is σ = 16519879584. Its totient is φ = 1901095920.

The previous prime is 6622222259. The next prime is 6622222273.

6622222266 is a `hidden beast` number, since 6 + 622 + 2 + 2 + 2 + 26 + 6 = 666.

6622222266 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (6622222259) and next prime (6622222273).

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 6622222266.

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 35 ways as a sum of consecutive naturals, for example, 25155 + ... + 117801.

It is an arithmetic number, because the mean of its divisors is an integer number (229442772).

Almost surely, 2^6622222266 is an apocalyptic number.

6622222266 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6622222266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8259939792).

6622222266 is an abundant number, since it is smaller than the sum of its proper divisors (9897657318).

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

6622222266 is a wasteful number, since it uses less digits than its factorization.

6622222266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92704 (or 92682 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 6622222266 is about 81377.0377072058. The cubic root of 6622222266 is about 1877.8803507899.

It can be divided in two parts, 66222 and 22266, that added together give a palindrome (88488).

The spelling of 6622222266 in words is "six billion, six hundred twenty-two million, two hundred twenty-two thousand, two hundred sixty-six".