6605216 has 12 divisors (see below), whose sum is σ = 13004082. Its totient is φ = 3302592.

The previous prime is 6605191. The next prime is 6605219. The reversal of 6605216 is 6125066.

It can be written as a sum of positive squares in only one way, i.e., 6250000 + 355216 = 2500^2 + 596^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6605219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103175 + ... + 103238.

Almost surely, 2^6605216 is an apocalyptic number.

It is an amenable number.

6605216 is a deficient number, since it is larger than the sum of its proper divisors (6398866).

6605216 is a wasteful number, since it uses less digits than its factorization.

6605216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206423 (or 206415 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 6605216 is about 2570.0614778639. The cubic root of 6605216 is about 187.6271469452.

The spelling of 6605216 in words is "six million, six hundred five thousand, two hundred sixteen".