266044216024066 has 16 divisors (see below), whose sum is σ = 403807181441400. Its totient is φ = 131448365837568.

The previous prime is 266044216024061. The next prime is 266044216024129. The reversal of 266044216024066 is 660420612440662.

It can be written as a sum of positive squares in 4 ways, for example, as 241725658005841 + 24318558018225 = 15547529^2 + 4931385^2 .

It is not an unprimeable number, because it can be changed into a prime (266044216024061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635825271 + ... + 1635987898.

Almost surely, 2^{266044216024066} is an apocalyptic number.

266044216024066 is a deficient number, since it is larger than the sum of its proper divisors (137762965417334).

266044216024066 is a wasteful number, since it uses less digits than its factorization.

266044216024066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271813653.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 266044216024066 in words is "two hundred sixty-six trillion, forty-four billion, two hundred sixteen million, twenty-four thousand, sixty-six".