160172166 has 128 divisors (see below), whose sum is σ = 427991040. Its totient is φ = 38707200.

The previous prime is 160172141. The next prime is 160172183. The reversal of 160172166 is 661271061.

It is a super-2 number, since 2×160172166² = 51310245522263112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 623110 + ... + 623366.

It is an arithmetic number, because the mean of its divisors is an integer number (3343680).

Almost surely, 2^160172166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 160172166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213995520).

160172166 is an abundant number, since it is smaller than the sum of its proper divisors (267818874).

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

160172166 is a wasteful number, since it uses less digits than its factorization.

160172166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 160172166 is about 12655.9142696211. The cubic root of 160172166 is about 543.0781745281.

The spelling of 160172166 in words is "one hundred sixty million, one hundred seventy-two thousand, one hundred sixty-six".