666260200 has 24 divisors (see below), whose sum is σ = 1549055430. Its totient is φ = 266504000.

The previous prime is 666260197. The next prime is 666260207. The reversal of 666260200 is 2062666.

It can be written as a sum of positive squares in 3 ways, for example, as 650148004 + 16112196 = 25498^2 + 4014^2 .

It is not an unprimeable number, because it can be changed into a prime (666260207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1665451 + ... + 1665850.

Almost surely, 2^666260200 is an apocalyptic number.

It is an amenable number.

666260200 is an abundant number, since it is smaller than the sum of its proper divisors (882795230).

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

666260200 is a wasteful number, since it uses less digits than its factorization.

666260200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3331317 (or 3331308 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 666260200 is about 25812.0165814297. The cubic root of 666260200 is about 873.4028879721.

The spelling of 666260200 in words is "six hundred sixty-six million, two hundred sixty thousand, two hundred".