166255168 has 56 divisors (see below), whose sum is σ = 354787200. Its totient is φ = 77050368.

The previous prime is 166255153. The next prime is 166255183. The reversal of 166255168 is 861552661.

It is an interprime number because it is at equal distance from previous prime (166255153) and next prime (166255183).

It is a self number, because there is not a number n which added to its sum of digits gives 166255168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55698 + ... + 58606.

Almost surely, 2^166255168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166255168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177393600).

166255168 is an abundant number, since it is smaller than the sum of its proper divisors (188532032).

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

166255168 is a wasteful number, since it uses less digits than its factorization.

166255168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987 (or 2977 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 166255168 is about 12893.9973631144. The cubic root of 166255168 is about 549.8679220041.

The spelling of 166255168 in words is "one hundred sixty-six million, two hundred fifty-five thousand, one hundred sixty-eight".