168180066 has 12 divisors (see below), whose sum is σ = 364390182. Its totient is φ = 56060016.

The previous prime is 168180041. The next prime is 168180091. The reversal of 168180066 is 660081861.

It is an interprime number because it is at equal distance from previous prime (168180041) and next prime (168180091).

It can be written as a sum of positive squares in only one way, i.e., 120362841 + 47817225 = 10971^2 + 6915^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168180066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4671651 + ... + 4671686.

Almost surely, 2^168180066 is an apocalyptic number.

168180066 is an abundant number, since it is smaller than the sum of its proper divisors (196210116).

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

168180066 is a wasteful number, since it uses less digits than its factorization.

168180066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343345 (or 9343342 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 168180066 is about 12968.4257332955. The cubic root of 168180066 is about 551.9819031559.

The spelling of 168180066 in words is "one hundred sixty-eight million, one hundred eighty thousand, sixty-six".