555552166 has 32 divisors (see below), whose sum is σ = 938665728. Its totient is φ = 244680480.

The previous prime is 555552161. The next prime is 555552167. The reversal of 555552166 is 661255555.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555552161) 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 15 ways as a sum of consecutive naturals, for example, 340645 + ... + 342271.

It is an arithmetic number, because the mean of its divisors is an integer number (29333304).

Almost surely, 2^555552166 is an apocalyptic number.

555552166 is a deficient number, since it is larger than the sum of its proper divisors (383113562).

555552166 is a wasteful number, since it uses less digits than its factorization.

555552166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its digits is 225000, while the sum is 40.

The square root of 555552166 is about 23570.1541361104. The cubic root of 555552166 is about 822.0690195675.

The spelling of 555552166 in words is "five hundred fifty-five million, five hundred fifty-two thousand, one hundred sixty-six".