665248200 has 48 divisors (see below), whose sum is σ = 2062271280. Its totient is φ = 177399360.

The previous prime is 665248193. The next prime is 665248201. The reversal of 665248200 is 2842566.

665248200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (665248201) 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, 553774 + ... + 554973.

It is an arithmetic number, because the mean of its divisors is an integer number (42963985).

Almost surely, 2^665248200 is an apocalyptic number.

665248200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

665248200 is an abundant number, since it is smaller than the sum of its proper divisors (1397023080).

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

665248200 is a wasteful number, since it uses less digits than its factorization.

665248200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108766 (or 1108757 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 665248200 is about 25792.4058590896. The cubic root of 665248200 is about 872.9604524098.

It can be divided in two parts, 665 and 248200, that added together give a triangular number (248865 = T₇₀₅).

The spelling of 665248200 in words is "six hundred sixty-five million, two hundred forty-eight thousand, two hundred".