6578660 has 48 divisors (see below), whose sum is σ = 15966720. Its totient is φ = 2250240.

The previous prime is 6578659. The next prime is 6578669. The reversal of 6578660 is 668756.

It is not an unprimeable number, because it can be changed into a prime (6578669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861 + ... + 4619.

It is an arithmetic number, because the mean of its divisors is an integer number (332640).

Almost surely, 2^6578660 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 6578660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7983360).

6578660 is an abundant number, since it is smaller than the sum of its proper divisors (9388060).

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

6578660 is a wasteful number, since it uses less digits than its factorization.

6578660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 6578660 is about 2564.8898611831. The cubic root of 6578660 is about 187.3753601275.

The spelling of 6578660 in words is "six million, five hundred seventy-eight thousand, six hundred sixty".