266163312 has 20 divisors (see below), whose sum is σ = 687588680. Its totient is φ = 88721088.

The previous prime is 266163299. The next prime is 266163371. The reversal of 266163312 is 213361662.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 266163312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2772487 + ... + 2772582.

It is an arithmetic number, because the mean of its divisors is an integer number (34379434).

Almost surely, 2^266163312 is an apocalyptic number.

It is an amenable number.

266163312 is an abundant number, since it is smaller than the sum of its proper divisors (421425368).

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

266163312 is a wasteful number, since it uses less digits than its factorization.

266163312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5545080 (or 5545074 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 266163312 is about 16314.5123126620. The cubic root of 266163312 is about 643.2543483320.

The spelling of 266163312 in words is "two hundred sixty-six million, one hundred sixty-three thousand, three hundred twelve".