205032166 has 8 divisors (see below), whose sum is σ = 320919984. Its totient is φ = 98058840.

The previous prime is 205032137. The next prime is 205032169. The reversal of 205032166 is 661230502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 205032166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205032169) 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 3 ways as a sum of consecutive naturals, for example, 2228565 + ... + 2228656.

It is an arithmetic number, because the mean of its divisors is an integer number (40114998).

Almost surely, 2^205032166 is an apocalyptic number.

205032166 is a deficient number, since it is larger than the sum of its proper divisors (115887818).

205032166 is a wasteful number, since it uses less digits than its factorization.

205032166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457246.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 205032166 is about 14318.9443046616. The cubic root of 205032166 is about 589.6676918298.

Adding to 205032166 its reverse (661230502), we get a palindrome (866262668).

The spelling of 205032166 in words is "two hundred five million, thirty-two thousand, one hundred sixty-six".