6659020 has 12 divisors (see below), whose sum is σ = 13983984. Its totient is φ = 2663600.

The previous prime is 6658999. The next prime is 6659021. The reversal of 6659020 is 209566.

It is a self number, because there is not a number n which added to its sum of digits gives 6659020.

It is not an unprimeable number, because it can be changed into a prime (6659021) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 166456 + ... + 166495.

It is an arithmetic number, because the mean of its divisors is an integer number (1165332).

Almost surely, 2^6659020 is an apocalyptic number.

It is an amenable number.

6659020 is an abundant number, since it is smaller than the sum of its proper divisors (7324964).

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

6659020 is a wasteful number, since it uses less digits than its factorization.

6659020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332960 (or 332958 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6659020 is about 2580.5077019842. The cubic root of 6659020 is about 188.1352203584.

The spelling of 6659020 in words is "six million, six hundred fifty-nine thousand, twenty".