266247168 has 88 divisors (see below), whose sum is σ = 774257280. Its totient is φ = 80670720.

The previous prime is 266247119. The next prime is 266247169. The reversal of 266247168 is 861742662.

266247168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (88).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266247169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29853 + ... + 37731.

Almost surely, 2^266247168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266247168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387128640).

266247168 is an abundant number, since it is smaller than the sum of its proper divisors (508010112).

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

266247168 is a wasteful number, since it uses less digits than its factorization.

266247168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7913 (or 7895 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 266247168 is about 16317.0820920899. The cubic root of 266247168 is about 643.3218946722.

The spelling of 266247168 in words is "two hundred sixty-six million, two hundred forty-seven thousand, one hundred sixty-eight".