266946868 has 6 divisors (see below), whose sum is σ = 467157026. Its totient is φ = 133473432.

The previous prime is 266946863. The next prime is 266946877. The reversal of 266946868 is 868649662.

It can be written as a sum of positive squares in only one way, i.e., 265950864 + 996004 = 16308^2 + 998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266946863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33368355 + ... + 33368362.

Almost surely, 2^266946868 is an apocalyptic number.

It is an amenable number.

266946868 is a deficient number, since it is larger than the sum of its proper divisors (200210158).

266946868 is a wasteful number, since it uses less digits than its factorization.

266946868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66736721 (or 66736719 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 55.

The square root of 266946868 is about 16338.5087446805. The cubic root of 266946868 is about 643.8849536655.

The spelling of 266946868 in words is "two hundred sixty-six million, nine hundred forty-six thousand, eight hundred sixty-eight".