206655155 has 8 divisors (see below), whose sum is σ = 283412832. Its totient is φ = 141706368.

The previous prime is 206655139. The next prime is 206655157. The reversal of 206655155 is 551556602.

206655155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 206655155 - 2⁴ = 206655139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 5904433 = 206655155 / (2 + 0 + 6 + 6 + 5 + 5 + 1 + 5 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206655157) 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, 2952182 + ... + 2952251.

It is an arithmetic number, because the mean of its divisors is an integer number (35426604).

Almost surely, 2^206655155 is an apocalyptic number.

206655155 is a deficient number, since it is larger than the sum of its proper divisors (76757677).

206655155 is an equidigital number, since it uses as much as digits as its factorization.

206655155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5904445.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 206655155 is about 14375.5053824205. The cubic root of 206655155 is about 591.2194971652.

The spelling of 206655155 in words is "two hundred six million, six hundred fifty-five thousand, one hundred fifty-five".