266386080 has 96 divisors (see below), whose sum is σ = 883310400. Its totient is φ = 67295232.

The previous prime is 266386067. The next prime is 266386091. The reversal of 266386080 is 80683662.

266386080 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 (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5485 + ... + 23724.

It is an arithmetic number, because the mean of its divisors is an integer number (9201150).

Almost surely, 2^266386080 is an apocalyptic number.

266386080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266386080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441655200).

266386080 is an abundant number, since it is smaller than the sum of its proper divisors (616924320).

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

266386080 is a wasteful number, since it uses less digits than its factorization.

266386080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29246 (or 29238 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 266386080 is about 16321.3381804312. The cubic root of 266386080 is about 643.4337576383.

The spelling of 266386080 in words is "two hundred sixty-six million, three hundred eighty-six thousand, eighty".