266413560 has 64 divisors (see below), whose sum is σ = 913420800. Its totient is φ = 60894336.

The previous prime is 266413559. The next prime is 266413601. The reversal of 266413560 is 65314662.

It is a super-3 number, since 3×266413560³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

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, 157740 + ... + 159419.

It is an arithmetic number, because the mean of its divisors is an integer number (14272200).

Almost surely, 2^266413560 is an apocalyptic number.

266413560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266413560 is an abundant number, since it is smaller than the sum of its proper divisors (647007240).

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

266413560 is a wasteful number, since it uses less digits than its factorization.

266413560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317180 (or 317176 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 266413560 is about 16322.1800014581. The cubic root of 266413560 is about 643.4558821073.

The spelling of 266413560 in words is "two hundred sixty-six million, four hundred thirteen thousand, five hundred sixty".