266936085 has 48 divisors (see below), whose sum is σ = 501232368. Its totient is φ = 130636800.

The previous prime is 266936069. The next prime is 266936099. The reversal of 266936085 is 580639662.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 185340996 + 81595089 = 13614^2 + 9033^2 .

It is not a de Polignac number, because 266936085 - 2⁴ = 266936069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 266936085.

It is a congruent number.

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, 104625 + ... + 107145.

It is an arithmetic number, because the mean of its divisors is an integer number (10442341).

Almost surely, 2^266936085 is an apocalyptic number.

It is an amenable number.

266936085 is a deficient number, since it is larger than the sum of its proper divisors (234296283).

266936085 is a wasteful number, since it uses less digits than its factorization.

266936085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 266936085 is about 16338.1787540717. The cubic root of 266936085 is about 643.8762838941.

The spelling of 266936085 in words is "two hundred sixty-six million, nine hundred thirty-six thousand, eighty-five".