266063199228 has 48 divisors (see below), whose sum is σ = 695059115520. Its totient is φ = 88010722800.

The previous prime is 266063199221. The next prime is 266063199229. The reversal of 266063199228 is 822991360662.

It is a happy number.

266063199228 is a `hidden beast` number, since 2 + 6 + 606 + 3 + 1 + 9 + 9 + 2 + 28 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266063199221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9388708 + ... + 9417003.

It is an arithmetic number, because the mean of its divisors is an integer number (14480398240).

Almost surely, 2^266063199228 is an apocalyptic number.

It is an amenable number.

266063199228 is an abundant number, since it is smaller than the sum of its proper divisors (428995916292).

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

266063199228 is a wasteful number, since it uses less digits than its factorization.

266063199228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18805855 (or 18805847 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 266063199228 in words is "two hundred sixty-six billion, sixty-three million, one hundred ninety-nine thousand, two hundred twenty-eight".