6560646 has 8 divisors (see below), whose sum is σ = 13121304. Its totient is φ = 2186880.

The previous prime is 6560633. The next prime is 6560647. The reversal of 6560646 is 6460656.

It is a sphenic number, since it is the product of 3 distinct primes.

6560646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6560647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 546715 + ... + 546726.

It is an arithmetic number, because the mean of its divisors is an integer number (1640163).

Almost surely, 2^6560646 is an apocalyptic number.

6560646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6560646 is a wasteful number, since it uses less digits than its factorization.

6560646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093446.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6560646 is about 2561.3758021813. The cubic root of 6560646 is about 187.2041770746.

The spelling of 6560646 in words is "six million, five hundred sixty thousand, six hundred forty-six".