266990068 has 12 divisors (see below), whose sum is σ = 470912512. Its totient is φ = 132443640.

The previous prime is 266990063. The next prime is 266990069. The reversal of 266990068 is 860099662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266990063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262278 + ... + 263293.

Almost surely, 2^266990068 is an apocalyptic number.

It is an amenable number.

266990068 is a deficient number, since it is larger than the sum of its proper divisors (203922444).

266990068 is a wasteful number, since it uses less digits than its factorization.

266990068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525702 (or 525700 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 266990068 is about 16339.8307212774. The cubic root of 266990068 is about 643.9196850833.

The spelling of 266990068 in words is "two hundred sixty-six million, nine hundred ninety thousand, sixty-eight".