266115055 has 16 divisors (see below), whose sum is σ = 324385920. Its totient is φ = 209544192.

The previous prime is 266115013. The next prime is 266115061. The reversal of 266115055 is 550511662.

It is a cyclic number.

It is not a de Polignac number, because 266115055 - 2²⁷ = 131897327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155967 + ... + 157663.

It is an arithmetic number, because the mean of its divisors is an integer number (20274120).

Almost surely, 2^266115055 is an apocalyptic number.

266115055 is a deficient number, since it is larger than the sum of its proper divisors (58270865).

266115055 is a wasteful number, since it uses less digits than its factorization.

266115055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 266115055 is about 16313.0332863021. The cubic root of 266115055 is about 643.2154706958.

The spelling of 266115055 in words is "two hundred sixty-six million, one hundred fifteen thousand, fifty-five".