266782223442 has 16 divisors (see below), whose sum is σ = 609787939392. Its totient is φ = 76223492400.

The previous prime is 266782223419. The next prime is 266782223443. The reversal of 266782223442 is 244322287662.

It is a junction number, because it is equal to n+sod(n) for n = 266782223391 and 266782223400.

It is not an unprimeable number, because it can be changed into a prime (266782223443) 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, 3175978809 + ... + 3175978892.

It is an arithmetic number, because the mean of its divisors is an integer number (38111746212).

Almost surely, 2^266782223442 is an apocalyptic number.

266782223442 is an abundant number, since it is smaller than the sum of its proper divisors (343005715950).

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

266782223442 is a wasteful number, since it uses less digits than its factorization.

266782223442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351957713.

The product of its digits is 3096576, while the sum is 48.

The spelling of 266782223442 in words is "two hundred sixty-six billion, seven hundred eighty-two million, two hundred twenty-three thousand, four hundred forty-two".