189166068 has 216 divisors, whose sum is σ = 612605448. Its totient is φ = 48771072.

The previous prime is 189166067. The next prime is 189166069. The reversal of 189166068 is 860661981.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (189166067) and next prime (189166069).

It can be written as a sum of positive squares in 4 ways, for example, as 1695204 + 187470864 = 1302^2 + 13692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189166067) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1673980 + ... + 1674092.

Almost surely, 2^189166068 is an apocalyptic number.

189166068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189166068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306302724).

189166068 is an abundant number, since it is smaller than the sum of its proper divisors (423439380).

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

189166068 is a wasteful number, since it uses less digits than its factorization.

189166068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 189166068 is about 13753.7655934657. The cubic root of 189166068 is about 574.0473885127.

The spelling of 189166068 in words is "one hundred eighty-nine million, one hundred sixty-six thousand, sixty-eight".