166195266 has 8 divisors (see below), whose sum is σ = 332390544. Its totient is φ = 55398420.

The previous prime is 166195229. The next prime is 166195273. The reversal of 166195266 is 662591661.

166195266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

166195266 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13849600 + ... + 13849611.

It is an arithmetic number, because the mean of its divisors is an integer number (41548818).

Almost surely, 2^166195266 is an apocalyptic number.

166195266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166195266 is a wasteful number, since it uses less digits than its factorization.

166195266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27699216.

The product of its digits is 116640, while the sum is 42.

The square root of 166195266 is about 12891.6742900214. The cubic root of 166195266 is about 549.8018746438.

The spelling of 166195266 in words is "one hundred sixty-six million, one hundred ninety-five thousand, two hundred sixty-six".