6655605207165 has 24 divisors (see below), whose sum is σ = 11536448684280. Its totient is φ = 3549635702784.

The previous prime is 6655605207091. The next prime is 6655605207187. The reversal of 6655605207165 is 5617025065566.

6655605207165 is a `hidden beast` number, since 6 + 6 + 5 + 5 + 605 + 20 + 7 + 1 + 6 + 5 = 666.

6655605207165 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2380151615076 + 4275453592089 = 1542774^2 + 2067717^2 .

It is not a de Polignac number, because 6655605207165 - 2¹² = 6655605203069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10671789 + ... + 11278221.

It is an arithmetic number, because the mean of its divisors is an integer number (480685361845).

Almost surely, 2^{6655605207165} is an apocalyptic number.

It is an amenable number.

6655605207165 is a deficient number, since it is larger than the sum of its proper divisors (4880843477115).

6655605207165 is a wasteful number, since it uses less digits than its factorization.

6655605207165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850333 (or 850330 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 54.

The spelling of 6655605207165 in words is "six trillion, six hundred fifty-five billion, six hundred five million, two hundred seven thousand, one hundred sixty-five".