6605655 has 32 divisors (see below), whose sum is σ = 12317184. Its totient is φ = 2960256.

The previous prime is 6605653. The next prime is 6605657. The reversal of 6605655 is 5565066.

6605655 = T₂₆ + T₂₇ + ... + T₃₄₀.

6605655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6605653) and next prime (6605657).

It is not a de Polignac number, because 6605655 - 2¹ = 6605653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6605653) 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 31 ways as a sum of consecutive naturals, for example, 4972 + ... + 6158.

It is an arithmetic number, because the mean of its divisors is an integer number (384912).

Almost surely, 2^6605655 is an apocalyptic number.

6605655 is a deficient number, since it is larger than the sum of its proper divisors (5711529).

6605655 is a wasteful number, since it uses less digits than its factorization.

6605655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 6605655 is about 2570.1468829621. The cubic root of 6605655 is about 187.6313035841.

It can be divided in two parts, 6605 and 655, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 6605655 in words is "six million, six hundred five thousand, six hundred fifty-five".