6655480 has 32 divisors (see below), whose sum is σ = 16128000. Its totient is φ = 2457216.

The previous prime is 6655423. The next prime is 6655531. The reversal of 6655480 is 845566.

6655480 = 65² + 66² + ... + 272².

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5880 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (504000).

Almost surely, 2^6655480 is an apocalyptic number.

It is an amenable number.

6655480 is an abundant number, since it is smaller than the sum of its proper divisors (9472520).

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

6655480 is a wasteful number, since it uses less digits than its factorization.

6655480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12823 (or 12819 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 6655480 is about 2579.8216992653. The cubic root of 6655480 is about 188.1018762762.

The spelling of 6655480 in words is "six million, six hundred fifty-five thousand, four hundred eighty".