169286166 has 64 divisors (see below), whose sum is σ = 444787200. Its totient is φ = 46696608.

The previous prime is 169286149. The next prime is 169286167. The reversal of 169286166 is 661682961.

169286166 is a `hidden beast` number, since 1 + 6 + 9 + 28 + 616 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169286167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3241 + ... + 18683.

It is an arithmetic number, because the mean of its divisors is an integer number (6949800).

Almost surely, 2^169286166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169286166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222393600).

169286166 is an abundant number, since it is smaller than the sum of its proper divisors (275501034).

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

169286166 is a wasteful number, since it uses less digits than its factorization.

169286166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15490 (or 15484 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 169286166 is about 13011.0017293059. The cubic root of 169286166 is about 553.1893660229.

Subtracting from 169286166 its sum of digits (45), we obtain a square (169286121 = 13011²).

It can be divided in two parts, 1692861 and 66, that multiplied together give a triangular number (111728826 = T₁₄₉₄₈).

The spelling of 169286166 in words is "one hundred sixty-nine million, two hundred eighty-six thousand, one hundred sixty-six".