266016506 has 16 divisors (see below), whose sum is σ = 456391680. Its totient is φ = 113916240.

The previous prime is 266016503. The next prime is 266016529. The reversal of 266016506 is 605610662.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (266016503) 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 7 ways as a sum of consecutive naturals, for example, 12455 + ... + 26213.

It is an arithmetic number, because the mean of its divisors is an integer number (28524480).

Almost surely, 2^266016506 is an apocalyptic number.

266016506 is a deficient number, since it is larger than the sum of its proper divisors (190375174).

266016506 is a wasteful number, since it uses less digits than its factorization.

266016506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15149.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 266016506 is about 16310.0124463472. The cubic root of 266016506 is about 643.1360613494.

The spelling of 266016506 in words is "two hundred sixty-six million, sixteen thousand, five hundred six".