266333166 has 24 divisors (see below), whose sum is σ = 629515224. Its totient is φ = 80706960.

The previous prime is 266333159. The next prime is 266333189. The reversal of 266333166 is 661333662.

It is a happy number.

266333166 is a `hidden beast` number, since 2 + 6 + 633 + 3 + 16 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 266333166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672361 + ... + 672756.

It is an arithmetic number, because the mean of its divisors is an integer number (26229801).

Almost surely, 2^266333166 is an apocalyptic number.

266333166 is an abundant number, since it is smaller than the sum of its proper divisors (363182058).

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

266333166 is a wasteful number, since it uses less digits than its factorization.

266333166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345136 (or 1345133 counting only the distinct ones).

The product of its digits is 69984, while the sum is 36.

The square root of 266333166 is about 16319.7170931361. The cubic root of 266333166 is about 643.3911516728.

The spelling of 266333166 in words is "two hundred sixty-six million, three hundred thirty-three thousand, one hundred sixty-six".