266066408 has 16 divisors (see below), whose sum is σ = 512358180. Its totient is φ = 129437568.

The previous prime is 266066401. The next prime is 266066417. The reversal of 266066408 is 804660662.

It can be written as a sum of positive squares in 2 ways, for example, as 179613604 + 86452804 = 13402^2 + 9298^2 .

It is not an unprimeable number, because it can be changed into a prime (266066401) 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, 449141 + ... + 449732.

Almost surely, 2^266066408 is an apocalyptic number.

It is an amenable number.

266066408 is a deficient number, since it is larger than the sum of its proper divisors (246291772).

266066408 is a wasteful number, since it uses less digits than its factorization.

266066408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898916 (or 898912 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 266066408 is about 16311.5421711131. The cubic root of 266066408 is about 643.1762741036.

The spelling of 266066408 in words is "two hundred sixty-six million, sixty-six thousand, four hundred eight".