266516085 has 32 divisors (see below), whose sum is σ = 475103232. Its totient is φ = 126466880.

The previous prime is 266516077. The next prime is 266516147. The reversal of 266516085 is 580615662.

266516085 = T₁₃₆ + T₁₃₇ + ... + T₁₁₆₉.

It is not a de Polignac number, because 266516085 - 2³ = 266516077 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, 9429 + ... + 24938.

It is an arithmetic number, because the mean of its divisors is an integer number (14846976).

Almost surely, 2^266516085 is an apocalyptic number.

It is an amenable number.

266516085 is a deficient number, since it is larger than the sum of its proper divisors (208587147).

266516085 is a wasteful number, since it uses less digits than its factorization.

266516085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34433.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 266516085 is about 16325.3203643910. The cubic root of 266516085 is about 643.5384127582.

The spelling of 266516085 in words is "two hundred sixty-six million, five hundred sixteen thousand, eighty-five".