664600200 has 192 divisors, whose sum is σ = 2272086720. Its totient is φ = 159360000.

The previous prime is 664600199. The next prime is 664600207. The reversal of 664600200 is 2006466.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664600207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666102 + ... + 667098.

It is an arithmetic number, because the mean of its divisors is an integer number (11833785).

Almost surely, 2^664600200 is an apocalyptic number.

664600200 is a gapful number since it is divisible by the number (60) 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 664600200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1136043360).

664600200 is an abundant number, since it is smaller than the sum of its proper divisors (1607486520).

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

664600200 is a wasteful number, since it uses less digits than its factorization.

664600200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 664600200 is about 25779.8409614955. The cubic root of 664600200 is about 872.6769180622.

Adding to 664600200 its reverse (2006466), we get a palindrome (666606666).

The spelling of 664600200 in words is "six hundred sixty-four million, six hundred thousand, two hundred".