266636045 has 32 divisors (see below), whose sum is σ = 353082240. Its totient is φ = 192096000.

The previous prime is 266636039. The next prime is 266636059. The reversal of 266636045 is 540636662.

It is a de Polignac number, because none of the positive numbers 2^k-266636045 is a prime.

It is a congruent number.

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, 962447 + ... + 962723.

It is an arithmetic number, because the mean of its divisors is an integer number (11033820).

Almost surely, 2^266636045 is an apocalyptic number.

It is an amenable number.

266636045 is a deficient number, since it is larger than the sum of its proper divisors (86446195).

266636045 is a wasteful number, since it uses less digits than its factorization.

266636045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 155520, while the sum is 38.

The square root of 266636045 is about 16328.9939984066. The cubic root of 266636045 is about 643.6349513822.

The spelling of 266636045 in words is "two hundred sixty-six million, six hundred thirty-six thousand, forty-five".