6551656 has 16 divisors (see below), whose sum is σ = 12931200. Its totient is φ = 3103344.

The previous prime is 6551653. The next prime is 6551689. The reversal of 6551656 is 6561556.

It is not an unprimeable number, because it can be changed into a prime (6551653) 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, 21400 + ... + 21703.

It is an arithmetic number, because the mean of its divisors is an integer number (808200).

Almost surely, 2^6551656 is an apocalyptic number.

It is an amenable number.

6551656 is a deficient number, since it is larger than the sum of its proper divisors (6379544).

6551656 is a wasteful number, since it uses less digits than its factorization.

6551656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43128 (or 43124 counting only the distinct ones).

The product of its digits is 27000, while the sum is 34.

The square root of 6551656 is about 2559.6202843391. The cubic root of 6551656 is about 187.1186298660.

The spelling of 6551656 in words is "six million, five hundred fifty-one thousand, six hundred fifty-six".