195843666 has 16 divisors (see below), whose sum is σ = 408717504. Its totient is φ = 62442864.

The previous prime is 195843653. The next prime is 195843671. The reversal of 195843666 is 666348591.

195843666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709441 + ... + 709716.

It is an arithmetic number, because the mean of its divisors is an integer number (25544844).

Almost surely, 2^195843666 is an apocalyptic number.

195843666 is an abundant number, since it is smaller than the sum of its proper divisors (212873838).

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

195843666 is a wasteful number, since it uses less digits than its factorization.

195843666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419185.

The product of its digits is 933120, while the sum is 48.

The square root of 195843666 is about 13994.4155290602. The cubic root of 195843666 is about 580.7240916797.

The spelling of 195843666 in words is "one hundred ninety-five million, eight hundred forty-three thousand, six hundred sixty-six".