266632212 has 144 divisors (see below), whose sum is σ = 803788160. Its totient is φ = 67288320.

The previous prime is 266632181. The next prime is 266632213. The reversal of 266632212 is 212236662.

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 266632212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266632213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375714 + ... + 376422.

Almost surely, 2^266632212 is an apocalyptic number.

266632212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266632212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401894080).

266632212 is an abundant number, since it is smaller than the sum of its proper divisors (537155948).

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

266632212 is a wasteful number, since it uses less digits than its factorization.

266632212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 769 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 266632212 is about 16328.8766300686. The cubic root of 266632212 is about 643.6318671973.

Adding to 266632212 its reverse (212236662), we get a palindrome (478868874).

The spelling of 266632212 in words is "two hundred sixty-six million, six hundred thirty-two thousand, two hundred twelve".