266504080 has 20 divisors (see below), whose sum is σ = 619622172. Its totient is φ = 106601600.

The previous prime is 266504071. The next prime is 266504099. The reversal of 266504080 is 80405662.

266504080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210134016 + 56370064 = 14496^2 + 7508^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1665571 + ... + 1665730.

Almost surely, 2^266504080 is an apocalyptic number.

266504080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266504080 is an abundant number, since it is smaller than the sum of its proper divisors (353118092).

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

266504080 is a wasteful number, since it uses less digits than its factorization.

266504080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331314 (or 3331308 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 266504080 is about 16324.9526798702. The cubic root of 266504080 is about 643.5287500585.

The spelling of 266504080 in words is "two hundred sixty-six million, five hundred four thousand, eighty".