6656280 has 32 divisors (see below), whose sum is σ = 19969200. Its totient is φ = 1774976.

The previous prime is 6656261. The next prime is 6656291. The reversal of 6656280 is 826566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27615 + ... + 27854.

Almost surely, 2^6656280 is an apocalyptic number.

6656280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6656280 is an abundant number, since it is smaller than the sum of its proper divisors (13312920).

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

6656280 is a wasteful number, since it uses less digits than its factorization.

6656280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55483 (or 55479 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 6656280 is about 2579.9767440812. The cubic root of 6656280 is about 188.1094126959.

The spelling of 6656280 in words is "six million, six hundred fifty-six thousand, two hundred eighty".