266460066 has 96 divisors (see below), whose sum is σ = 643668480. Its totient is φ = 79315200.

The previous prime is 266460053. The next prime is 266460071. The reversal of 266460066 is 660064662.

266460066 is a `hidden beast` number, since 2 + 6 + 646 + 0 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 266460066.

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 47 ways as a sum of consecutive naturals, for example, 434376 + ... + 434988.

It is an arithmetic number, because the mean of its divisors is an integer number (6704880).

Almost surely, 2^266460066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266460066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321834240).

266460066 is an abundant number, since it is smaller than the sum of its proper divisors (377208414).

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

266460066 is a wasteful number, since it uses less digits than its factorization.

266460066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 266460066 is about 16323.6045651688. The cubic root of 266460066 is about 643.4933211653.

The spelling of 266460066 in words is "two hundred sixty-six million, four hundred sixty thousand, sixty-six".