266266116 has 30 divisors (see below), whose sum is σ = 696073070. Its totient is φ = 88755264.

The previous prime is 266266111. The next prime is 266266127. The reversal of 266266116 is 611662662.

It is a happy number.

266266116 is a `hidden beast` number, since 26 + 626 + 6 + 1 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 264192516 + 2073600 = 16254^2 + 1440^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (266266111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 410581 + ... + 411228.

Almost surely, 2^266266116 is an apocalyptic number.

It is an amenable number.

266266116 is an abundant number, since it is smaller than the sum of its proper divisors (429806954).

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

266266116 is a wasteful number, since it uses less digits than its factorization.

266266116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821825 (or 821814 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 266266116 is about 16317.6627002767. The cubic root of 266266116 is about 643.3371553968.

The spelling of 266266116 in words is "two hundred sixty-six million, two hundred sixty-six thousand, one hundred sixteen".