266576460 has 96 divisors (see below), whose sum is σ = 790352640. Its totient is φ = 66947328.

The previous prime is 266576459. The next prime is 266576491. The reversal of 266576460 is 64675662.

It is a super-2 number, since 2×266576460² = 142126018052263200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223987 + ... + 225173.

It is an arithmetic number, because the mean of its divisors is an integer number (8232840).

Almost surely, 2^266576460 is an apocalyptic number.

266576460 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 266576460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395176320).

266576460 is an abundant number, since it is smaller than the sum of its proper divisors (523776180).

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

266576460 is a wasteful number, since it uses less digits than its factorization.

266576460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 266576460 is about 16327.1693811267. The cubic root of 266576460 is about 643.5870035692.

The spelling of 266576460 in words is "two hundred sixty-six million, five hundred seventy-six thousand, four hundred sixty".