166704066 has 24 divisors (see below), whose sum is σ = 363833964. Its totient is φ = 55161600.

The previous prime is 166704061. The next prime is 166704071. The reversal of 166704066 is 660407661.

It is an interprime number because it is at equal distance from previous prime (166704061) and next prime (166704071).

It can be written as a sum of positive squares in 2 ways, for example, as 137381841 + 29322225 = 11721^2 + 5415^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166704066.

It is not an unprimeable number, because it can be changed into a prime (166704061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31335 + ... + 36266.

Almost surely, 2^166704066 is an apocalyptic number.

166704066 is an abundant number, since it is smaller than the sum of its proper divisors (197129898).

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

166704066 is a wasteful number, since it uses less digits than its factorization.

166704066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67746 (or 67743 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 166704066 is about 12911.3928760610. The cubic root of 166704066 is about 550.3623683631.

It can be divided in two parts, 16670 and 4066, that added together give a 4-th power (20736 = 12⁴).

The spelling of 166704066 in words is "one hundred sixty-six million, seven hundred four thousand, sixty-six".