266907168 has 144 divisors (see below), whose sum is σ = 834515136. Its totient is φ = 80248320.

The previous prime is 266907161. The next prime is 266907169. The reversal of 266907168 is 861709662.

266907168 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 (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266907161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 547821 + ... + 548307.

It is an arithmetic number, because the mean of its divisors is an integer number (5795244).

Almost surely, 2^266907168 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 266907168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417257568).

266907168 is an abundant number, since it is smaller than the sum of its proper divisors (567607968).

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

266907168 is a wasteful number, since it uses less digits than its factorization.

266907168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 266907168 is about 16337.2937783465. The cubic root of 266907168 is about 643.8530328315.

The spelling of 266907168 in words is "two hundred sixty-six million, nine hundred seven thousand, one hundred sixty-eight".