266530068 has 96 divisors (see below), whose sum is σ = 817017600. Its totient is φ = 73519488.

The previous prime is 266530067. The next prime is 266530073. The reversal of 266530068 is 860035662.

266530068 is a `hidden beast` number, since 2 + 66 + 530 + 0 + 68 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266530067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15846 + ... + 28002.

It is an arithmetic number, because the mean of its divisors is an integer number (8510600).

Almost surely, 2^266530068 is an apocalyptic number.

266530068 is a gapful number since it is divisible by the number (28) 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 266530068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408508800).

266530068 is an abundant number, since it is smaller than the sum of its proper divisors (550487532).

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

266530068 is a wasteful number, since it uses less digits than its factorization.

266530068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12206 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 266530068 is about 16325.7486198949. The cubic root of 266530068 is about 643.5496671637.

The spelling of 266530068 in words is "two hundred sixty-six million, five hundred thirty thousand, sixty-eight".