266816992 has 24 divisors (see below), whose sum is σ = 565704216. Its totient is φ = 123146112.

The previous prime is 266816983. The next prime is 266817037. The reversal of 266816992 is 299618662.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 320278 + ... + 321109.

It is an arithmetic number, because the mean of its divisors is an integer number (23571009).

Almost surely, 2^266816992 is an apocalyptic number.

It is an amenable number.

266816992 is an abundant number, since it is smaller than the sum of its proper divisors (298887224).

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

266816992 is a wasteful number, since it uses less digits than its factorization.

266816992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641410 (or 641402 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 266816992 is about 16334.5337245971. The cubic root of 266816992 is about 643.7805149453.

The spelling of 266816992 in words is "two hundred sixty-six million, eight hundred sixteen thousand, nine hundred ninety-two".