551136166 has 32 divisors (see below), whose sum is σ = 1017704448. Its totient is φ = 218639520.

The previous prime is 551136163. The next prime is 551136181. The reversal of 551136166 is 661631155.

551136166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (34) 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 (551136161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17625 + ... + 37588.

It is an arithmetic number, because the mean of its divisors is an integer number (31803264).

Almost surely, 2^551136166 is an apocalyptic number.

551136166 is a deficient number, since it is larger than the sum of its proper divisors (466568282).

551136166 is a wasteful number, since it uses less digits than its factorization.

551136166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55276.

The product of its digits is 16200, while the sum is 34.

The square root of 551136166 is about 23476.2894427548. The cubic root of 551136166 is about 819.8850552743.

The spelling of 551136166 in words is "five hundred fifty-one million, one hundred thirty-six thousand, one hundred sixty-six".