6658216 has 16 divisors (see below), whose sum is σ = 12529440. Its totient is φ = 3317040.

The previous prime is 6658193. The next prime is 6658243. The reversal of 6658216 is 6128566.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1101 + ... + 3811.

It is an arithmetic number, because the mean of its divisors is an integer number (783090).

Almost surely, 2^6658216 is an apocalyptic number.

It is an amenable number.

6658216 is a deficient number, since it is larger than the sum of its proper divisors (5871224).

6658216 is a wasteful number, since it uses less digits than its factorization.

6658216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024 (or 3020 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 6658216 is about 2580.3519139838. The cubic root of 6658216 is about 188.1276483330.

The spelling of 6658216 in words is "six million, six hundred fifty-eight thousand, two hundred sixteen".