266440804222 has 8 divisors (see below), whose sum is σ = 399914321400. Its totient is φ = 133136030424.

The previous prime is 266440804213. The next prime is 266440804247. The reversal of 266440804222 is 222408044662.

266440804222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×266440804222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 42181897 + ... + 42188212.

It is an arithmetic number, because the mean of its divisors is an integer number (49989290175).

Almost surely, 2^266440804222 is an apocalyptic number.

266440804222 is a deficient number, since it is larger than the sum of its proper divisors (133473517178).

266440804222 is a wasteful number, since it uses less digits than its factorization.

266440804222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84371690.

The product of its (nonzero) digits is 294912, while the sum is 40.

Adding to 266440804222 its reverse (222408044662), we get a palindrome (488848848884).

The spelling of 266440804222 in words is "two hundred sixty-six billion, four hundred forty million, eight hundred four thousand, two hundred twenty-two".