266600 has 48 divisors (see below), whose sum is σ = 654720. Its totient is φ = 100800.

The previous prime is 266599. The next prime is 266603. The reversal of 266600 is 6662.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (266603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6179 + ... + 6221.

It is an arithmetic number, because the mean of its divisors is an integer number (13640).

2²⁶⁶⁶⁰⁰ is an apocalyptic number.

266600 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 266600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327360).

266600 is an abundant number, since it is smaller than the sum of its proper divisors (388120).

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

266600 is a wasteful number, since it uses less digits than its factorization.

266600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 266600 is about 516.3332257370. Note that the first 3 decimals coincide. The cubic root of 266600 is about 64.3605946967.

The spelling of 266600 in words is "two hundred sixty-six thousand, six hundred".