266937668 has 12 divisors (see below), whose sum is σ = 468635580. Its totient is φ = 133041792.

The previous prime is 266937661. The next prime is 266937673. The reversal of 266937668 is 866739662.

266937668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 529984 + 266407684 = 728^2 + 16322^2 .

It is not an unprimeable number, because it can be changed into a prime (266937661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105353 + ... + 107856.

It is an arithmetic number, because the mean of its divisors is an integer number (39052965).

Almost surely, 2^266937668 is an apocalyptic number.

It is an amenable number.

266937668 is a deficient number, since it is larger than the sum of its proper divisors (201697912).

266937668 is a wasteful number, since it uses less digits than its factorization.

266937668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213526 (or 213524 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The square root of 266937668 is about 16338.2271988120. The cubic root of 266937668 is about 643.8775566759.

The spelling of 266937668 in words is "two hundred sixty-six million, nine hundred thirty-seven thousand, six hundred sixty-eight".