266560080 has 40 divisors (see below), whose sum is σ = 826336992. Its totient is φ = 71082624.

The previous prime is 266560069. The next prime is 266560081. The reversal of 266560080 is 80065662.

266560080 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 (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266560081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555094 + ... + 555573.

Almost surely, 2^266560080 is an apocalyptic number.

266560080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266560080 is an abundant number, since it is smaller than the sum of its proper divisors (559776912).

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

266560080 is a wasteful number, since it uses less digits than its factorization.

266560080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110683 (or 1110677 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 266560080 is about 16326.6677555464. The cubic root of 266560080 is about 643.5738213962.

The spelling of 266560080 in words is "two hundred sixty-six million, five hundred sixty thousand, eighty".