266884356260 has 96 divisors (see below), whose sum is σ = 598388031360. Its totient is φ = 99635558400.

The previous prime is 266884356199. The next prime is 266884356313. The reversal of 266884356260 is 62653488662.

It is a junction number, because it is equal to n+sod(n) for n = 266884356196 and 266884356205.

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, 48249695 + ... + 48255225.

It is an arithmetic number, because the mean of its divisors is an integer number (6233208660).

Almost surely, 2^266884356260 is an apocalyptic number.

266884356260 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 266884356260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299194015680).

266884356260 is an abundant number, since it is smaller than the sum of its proper divisors (331503675100).

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

266884356260 is a wasteful number, since it uses less digits than its factorization.

266884356260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6717 (or 6715 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 266884356260 in words is "two hundred sixty-six billion, eight hundred eighty-four million, three hundred fifty-six thousand, two hundred sixty".