266305164 has 12 divisors (see below), whose sum is σ = 621378744. Its totient is φ = 88768384.

The previous prime is 266305163. The next prime is 266305211. The reversal of 266305164 is 461503662.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (266305163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11096037 + ... + 11096060.

It is an arithmetic number, because the mean of its divisors is an integer number (51781562).

Almost surely, 2^266305164 is an apocalyptic number.

It is an amenable number.

266305164 is an abundant number, since it is smaller than the sum of its proper divisors (355073580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266305164 is a wasteful number, since it uses less digits than its factorization.

266305164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22192104 (or 22192102 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 266305164 is about 16318.8591513010. The cubic root of 266305164 is about 643.3686023839.

The spelling of 266305164 in words is "two hundred sixty-six million, three hundred five thousand, one hundred sixty-four".