666228200 has 48 divisors (see below), whose sum is σ = 1689802560. Its totient is φ = 242264000.

The previous prime is 666228191. The next prime is 666228203. The reversal of 666228200 is 2822666.

It is not an unprimeable number, because it can be changed into a prime (666228203) 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, 149216 + ... + 153615.

It is an arithmetic number, because the mean of its divisors is an integer number (35204220).

Almost surely, 2^666228200 is an apocalyptic number.

It is an amenable number.

666228200 is an abundant number, since it is smaller than the sum of its proper divisors (1023574360).

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

666228200 is a wasteful number, since it uses less digits than its factorization.

666228200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302858 (or 302849 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 666228200 is about 25811.3967076561. The cubic root of 666228200 is about 873.3889047766.

The spelling of 666228200 in words is "six hundred sixty-six million, two hundred twenty-eight thousand, two hundred".