266211316 has 18 divisors (see below), whose sum is σ = 541930578. Its totient is φ = 114090480.

The previous prime is 266211311. The next prime is 266211343. The reversal of 266211316 is 613112662.

It can be written as a sum of positive squares in only one way, i.e., 259210000 + 7001316 = 16100^2 + 2646^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 678915 + ... + 679306.

Almost surely, 2^266211316 is an apocalyptic number.

It is an amenable number.

266211316 is an abundant number, since it is smaller than the sum of its proper divisors (275719262).

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

266211316 is a wasteful number, since it uses less digits than its factorization.

266211316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358239 (or 1358230 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 266211316 is about 16315.9834518180. The cubic root of 266211316 is about 643.2930174801.

Adding to 266211316 its reverse (613112662), we get a palindrome (879323978).

The spelling of 266211316 in words is "two hundred sixty-six million, two hundred eleven thousand, three hundred sixteen".