6655109 has 8 divisors (see below), whose sum is σ = 7072920. Its totient is φ = 6240256.

The previous prime is 6655097. The next prime is 6655133. The reversal of 6655109 is 9015566.

It can be written as a sum of positive squares in 4 ways, for example, as 178084 + 6477025 = 422^2 + 2545^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6655109 - 2⁴ = 6655093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5447 + ... + 6555.

It is an arithmetic number, because the mean of its divisors is an integer number (884115).

Almost surely, 2^6655109 is an apocalyptic number.

It is an amenable number.

6655109 is a deficient number, since it is larger than the sum of its proper divisors (417811).

6655109 is a wasteful number, since it uses less digits than its factorization.

6655109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 6655109 is about 2579.7497940692. The cubic root of 6655109 is about 188.0983810565.

The spelling of 6655109 in words is "six million, six hundred fifty-five thousand, one hundred nine".