195980166 has 12 divisors (see below), whose sum is σ = 424623732. Its totient is φ = 65326716.

The previous prime is 195980153. The next prime is 195980179. The reversal of 195980166 is 661089591.

It is an interprime number because it is at equal distance from previous prime (195980153) and next prime (195980179).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5443876 + ... + 5443911.

It is an arithmetic number, because the mean of its divisors is an integer number (35385311).

Almost surely, 2^195980166 is an apocalyptic number.

195980166 is an abundant number, since it is smaller than the sum of its proper divisors (228643566).

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

195980166 is a wasteful number, since it uses less digits than its factorization.

195980166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10887795 (or 10887792 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 195980166 is about 13999.2916249359. The cubic root of 195980166 is about 580.8589789103.

The spelling of 195980166 in words is "one hundred ninety-five million, nine hundred eighty thousand, one hundred sixty-six".