266245636 has 96 divisors (see below), whose sum is σ = 542959200. Its totient is φ = 113541120.

The previous prime is 266245591. The next prime is 266245649. The reversal of 266245636 is 636542662.

266245636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 51036736 + 215208900 = 7144^2 + 14670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2991480 + ... + 2991568.

It is an arithmetic number, because the mean of its divisors is an integer number (5655825).

Almost surely, 2^266245636 is an apocalyptic number.

It is an amenable number.

266245636 is an abundant number, since it is smaller than the sum of its proper divisors (276713564).

266245636 is a wasteful number, since it uses less digits than its factorization.

266245636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

The square root of 266245636 is about 16317.0351473544. The cubic root of 266245636 is about 643.3206607674.

The spelling of 266245636 in words is "two hundred sixty-six million, two hundred forty-five thousand, six hundred thirty-six".