6550660 has 24 divisors (see below), whose sum is σ = 13870080. Its totient is φ = 2598624.

The previous prime is 6550651. The next prime is 6550669. The reversal of 6550660 is 660556.

It is an interprime number because it is at equal distance from previous prime (6550651) and next prime (6550669).

It is a super-2 number, since 2×6550660² = 85822292871200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6550669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1251 + ... + 3829.

It is an arithmetic number, because the mean of its divisors is an integer number (577920).

Almost surely, 2^6550660 is an apocalyptic number.

It is an amenable number.

6550660 is an abundant number, since it is smaller than the sum of its proper divisors (7319420).

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

6550660 is a wasteful number, since it uses less digits than its factorization.

6550660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715 (or 2713 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 6550660 is about 2559.4257168357. The cubic root of 6550660 is about 187.1091472965.

The spelling of 6550660 in words is "six million, five hundred fifty thousand, six hundred sixty".