266872256 has 112 divisors (see below), whose sum is σ = 651638016. Its totient is φ = 105836544.

The previous prime is 266872237. The next prime is 266872357. The reversal of 266872256 is 652278662.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510011 + ... + 510533.

Almost surely, 2^266872256 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 266872256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325819008).

266872256 is an abundant number, since it is smaller than the sum of its proper divisors (384765760).

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

266872256 is a wasteful number, since it uses less digits than its factorization.

266872256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 616 counting only the distinct ones).

The product of its digits is 483840, while the sum is 44.

The square root of 266872256 is about 16336.2252677906. The cubic root of 266872256 is about 643.8249591791.

The spelling of 266872256 in words is "two hundred sixty-six million, eight hundred seventy-two thousand, two hundred fifty-six".