266448816 has 60 divisors (see below), whose sum is σ = 756843672. Its totient is φ = 87487488.

The previous prime is 266448811. The next prime is 266448817. The reversal of 266448816 is 618844662.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (266448811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4161 + ... + 23456.

Almost surely, 2^266448816 is an apocalyptic number.

It is an amenable number.

266448816 is an abundant number, since it is smaller than the sum of its proper divisors (490394856).

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

266448816 is a wasteful number, since it uses less digits than its factorization.

266448816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27698 (or 27689 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 266448816 is about 16323.2599685234. The cubic root of 266448816 is about 643.4842648967.

The spelling of 266448816 in words is "two hundred sixty-six million, four hundred forty-eight thousand, eight hundred sixteen".