266530100 has 72 divisors (see below), whose sum is σ = 613502400. Its totient is φ = 100224000.

The previous prime is 266530093. The next prime is 266530109. The reversal of 266530100 is 1035662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266530109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286436 + ... + 287364.

Almost surely, 2^266530100 is an apocalyptic number.

266530100 is a gapful number since it is divisible by the number (20) 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 266530100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306751200).

266530100 is an abundant number, since it is smaller than the sum of its proper divisors (346972300).

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

266530100 is a wasteful number, since it uses less digits than its factorization.

266530100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 266530100 is about 16325.7495999418. The cubic root of 266530100 is about 643.5496929189.

Adding to 266530100 its reverse (1035662), we get a palindrome (267565762).

The spelling of 266530100 in words is "two hundred sixty-six million, five hundred thirty thousand, one hundred".