166000099 has 8 divisors (see below), whose sum is σ = 172408320. Its totient is φ = 159711816.

The previous prime is 166000097. The next prime is 166000111. The reversal of 166000099 is 990000661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166000099 - 2¹ = 166000097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166000099.

It is not an unprimeable number, because it can be changed into a prime (166000091) 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 7 ways as a sum of consecutive naturals, for example, 27159 + ... + 32704.

It is an arithmetic number, because the mean of its divisors is an integer number (21551040).

Almost surely, 2^166000099 is an apocalyptic number.

166000099 is a deficient number, since it is larger than the sum of its proper divisors (6408221).

166000099 is an equidigital number, since it uses as much as digits as its factorization.

166000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59969.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 166000099 is about 12884.1025686697. The cubic root of 166000099 is about 549.5865752646.

The spelling of 166000099 in words is "one hundred sixty-six million, ninety-nine", and thus it is an aban number.