2208422668266 has 80 divisors (see below), whose sum is σ = 5209461787200. Its totient is φ = 697328134272.

The previous prime is 2208422668253. The next prime is 2208422668337. The reversal of 2208422668266 is 6628662248022.

2208422668266 is a `hidden beast` number, since 2 + 20 + 8 + 422 + 66 + 82 + 66 = 666.

It is a super-2 number, since 2×2208422668266² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37962690 + ... + 38020818.

It is an arithmetic number, because the mean of its divisors is an integer number (65118272340).

Almost surely, 2^{2208422668266} is an apocalyptic number.

2208422668266 is an abundant number, since it is smaller than the sum of its proper divisors (3001039118934).

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

2208422668266 is a wasteful number, since it uses less digits than its factorization.

2208422668266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70505 (or 70496 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 54.

The spelling of 2208422668266 in words is "two trillion, two hundred eight billion, four hundred twenty-two million, six hundred sixty-eight thousand, two hundred sixty-six".