6656320 has 112 divisors (see below), whose sum is σ = 18141696. Its totient is φ = 2304000.

The previous prime is 6656311. The next prime is 6656339. The reversal of 6656320 is 236566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109090 + ... + 109150.

Almost surely, 2^6656320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6656320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9070848).

6656320 is an abundant number, since it is smaller than the sum of its proper divisors (11485376).

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

6656320 is a wasteful number, since it uses less digits than its factorization.

6656320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 6656320 is about 2579.9844960774. The cubic root of 6656320 is about 188.1097895010.

The spelling of 6656320 in words is "six million, six hundred fifty-six thousand, three hundred twenty".