266799456 has 288 divisors, whose sum is σ = 968018688. Its totient is φ = 67691520.

The previous prime is 266799439. The next prime is 266799457. The reversal of 266799456 is 654997662.

266799456 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 (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266799457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1175215 + ... + 1175441.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^266799456 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 266799456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484009344).

266799456 is an abundant number, since it is smaller than the sum of its proper divisors (701219232).

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

266799456 is a wasteful number, since it uses less digits than its factorization.

266799456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 303 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 266799456 is about 16333.9969389002. The cubic root of 266799456 is about 643.7664109179.

The spelling of 266799456 in words is "two hundred sixty-six million, seven hundred ninety-nine thousand, four hundred fifty-six".