266550222 has 8 divisors (see below), whose sum is σ = 533100456. Its totient is φ = 88850072.

The previous prime is 266550209. The next prime is 266550227. The reversal of 266550222 is 222055662.

It is a sphenic number, since it is the product of 3 distinct primes.

266550222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 266550222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266550227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22212513 + ... + 22212524.

It is an arithmetic number, because the mean of its divisors is an integer number (66637557).

Almost surely, 2^266550222 is an apocalyptic number.

266550222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

266550222 is a wasteful number, since it uses less digits than its factorization.

266550222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44425042.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 266550222 is about 16326.3658540411. The cubic root of 266550222 is about 643.5658876889.

The spelling of 266550222 in words is "two hundred sixty-six million, five hundred fifty thousand, two hundred twenty-two".