266226801344 has 56 divisors (see below), whose sum is σ = 607816615200. Its totient is φ = 113331419136.

The previous prime is 266226801301. The next prime is 266226801349. The reversal of 266226801344 is 443108622662.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 266226801295 and 266226801304.

It is not an unprimeable number, because it can be changed into a prime (266226801349) 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, 1927397 + ... + 2060900.

Almost surely, 2^266226801344 is an apocalyptic number.

It is an amenable number.

266226801344 is an abundant number, since it is smaller than the sum of its proper divisors (341589813856).

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

266226801344 is a wasteful number, since it uses less digits than its factorization.

266226801344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988465 (or 3988455 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 266226801344 in words is "two hundred sixty-six billion, two hundred twenty-six million, eight hundred one thousand, three hundred forty-four".