266268672 has 156 divisors (see below), whose sum is σ = 797344704. Its totient is φ = 85524480.

The previous prime is 266268551. The next prime is 266268683. The reversal of 266268672 is 276862662.

266268672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1142668 + ... + 1142900.

It is an arithmetic number, because the mean of its divisors is an integer number (5111184).

Almost surely, 2^266268672 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 266268672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398672352).

266268672 is an abundant number, since it is smaller than the sum of its proper divisors (531076032).

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

266268672 is a wasteful number, since it uses less digits than its factorization.

266268672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 269 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 266268672 is about 16317.7410201290. The cubic root of 266268672 is about 643.3392139445.

The spelling of 266268672 in words is "two hundred sixty-six million, two hundred sixty-eight thousand, six hundred seventy-two".