206946655 has 8 divisors (see below), whose sum is σ = 248426352. Its totient is φ = 165497088.

The previous prime is 206946653. The next prime is 206946671. The reversal of 206946655 is 556649602.

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 206946655 - 2¹ = 206946653 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 (206946653) 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, 12364 + ... + 23806.

It is an arithmetic number, because the mean of its divisors is an integer number (31053294).

Almost surely, 2^206946655 is an apocalyptic number.

206946655 is a deficient number, since it is larger than the sum of its proper divisors (41479697).

206946655 is a wasteful number, since it uses less digits than its factorization.

206946655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15065.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 206946655 is about 14385.6405835819. The cubic root of 206946655 is about 591.4973505687.

The spelling of 206946655 in words is "two hundred six million, nine hundred forty-six thousand, six hundred fifty-five".