206006655 has 16 divisors (see below), whose sum is σ = 331826400. Its totient is φ = 109131648.

The previous prime is 206006627. The next prime is 206006659. The reversal of 206006655 is 556600602.

It is not a de Polignac number, because 206006655 - 2²⁰ = 204958079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206006659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43852 + ... + 48321.

It is an arithmetic number, because the mean of its divisors is an integer number (20739150).

Almost surely, 2^206006655 is an apocalyptic number.

206006655 is a deficient number, since it is larger than the sum of its proper divisors (125819745).

206006655 is a wasteful number, since it uses less digits than its factorization.

206006655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92330.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 206006655 is about 14352.9319304454. The cubic root of 206006655 is about 590.6004181701.

The spelling of 206006655 in words is "two hundred six million, six thousand, six hundred fifty-five".