1822205866266 has 16 divisors (see below), whose sum is σ = 4049346369600. Its totient is φ = 607401955404.

The previous prime is 1822205866231. The next prime is 1822205866267. The reversal of 1822205866266 is 6626685022281.

1822205866266 is a `hidden beast` number, since 1 + 8 + 2 + 2 + 2 + 0 + 5 + 8 + 6 + 626 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 33744553079 = 1822205866266 / (1 + 8 + 2 + 2 + 2 + 0 + 5 + 8 + 6 + 6 + 2 + 6 + 6).

It is not an unprimeable number, because it can be changed into a prime (1822205866267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16872276486 + ... + 16872276593.

It is an arithmetic number, because the mean of its divisors is an integer number (253084148100).

Almost surely, 2^{1822205866266} is an apocalyptic number.

1822205866266 is an abundant number, since it is smaller than the sum of its proper divisors (2227140503334).

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

1822205866266 is a wasteful number, since it uses less digits than its factorization.

1822205866266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33744553090 (or 33744553084 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 1822205866266 in words is "one trillion, eight hundred twenty-two billion, two hundred five million, eight hundred sixty-six thousand, two hundred sixty-six".