6630565 has 16 divisors (see below), whose sum is σ = 8211456. Its totient is φ = 5137600.

The previous prime is 6630553. The next prime is 6630583. The reversal of 6630565 is 5650366.

It is a happy number.

It is not a de Polignac number, because 6630565 - 2¹³ = 6622373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34620 + ... + 34810.

It is an arithmetic number, because the mean of its divisors is an integer number (513216).

Almost surely, 2^6630565 is an apocalyptic number.

It is an amenable number.

6630565 is a deficient number, since it is larger than the sum of its proper divisors (1580891).

6630565 is a wasteful number, since it uses less digits than its factorization.

6630565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 6630565 is about 2574.9883494882. The cubic root of 6630565 is about 187.8668609938.

The spelling of 6630565 in words is "six million, six hundred thirty thousand, five hundred sixty-five".