171166163166 has 24 divisors (see below), whose sum is σ = 380883265464. Its totient is φ = 55513350000.

The previous prime is 171166163117. The next prime is 171166163167. The reversal of 171166163166 is 661361661171.

171166163166 is a `hidden beast` number, since 1 + 7 + 1 + 1 + 6 + 6 + 1 + 631 + 6 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171166163167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128502460 + ... + 128503791.

It is an arithmetic number, because the mean of its divisors is an integer number (15870136061).

Almost surely, 2^171166163166 is an apocalyptic number.

171166163166 is an abundant number, since it is smaller than the sum of its proper divisors (209717102298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171166163166 is a wasteful number, since it uses less digits than its factorization.

171166163166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257006296 (or 257006293 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The spelling of 171166163166 in words is "one hundred seventy-one billion, one hundred sixty-six million, one hundred sixty-three thousand, one hundred sixty-six".