206166025103165 has 8 divisors (see below), whose sum is σ = 247973242261248. Its totient is φ = 164550145324240.

The previous prime is 206166025103161. The next prime is 206166025103197. The reversal of 206166025103165 is 561301520661602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206166025103165 - 2² = 206166025103161 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 (206166025103161) 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, 47834342417 + ... + 47834346726.

It is an arithmetic number, because the mean of its divisors is an integer number (30996655282656).

Almost surely, 2^{206166025103165} is an apocalyptic number.

It is an amenable number.

206166025103165 is a deficient number, since it is larger than the sum of its proper divisors (41807217158083).

206166025103165 is an equidigital number, since it uses as much as digits as its factorization.

206166025103165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95668689579.

The product of its (nonzero) digits is 388800, while the sum is 44.

Adding to 206166025103165 its reverse (561301520661602), we get a palindrome (767467545764767).

The spelling of 206166025103165 in words is "two hundred six trillion, one hundred sixty-six billion, twenty-five million, one hundred three thousand, one hundred sixty-five".