195046866 has 112 divisors (see below), whose sum is σ = 519393600. Its totient is φ = 53724384.

The previous prime is 195046847. The next prime is 195046879. The reversal of 195046866 is 668640591.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 295645 + ... + 296303.

Almost surely, 2^195046866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195046866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259696800).

195046866 is an abundant number, since it is smaller than the sum of its proper divisors (324346734).

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

195046866 is an equidigital number, since it uses as much as digits as its factorization.

195046866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 195046866 is about 13965.9180149391. The cubic root of 195046866 is about 579.9354525870.

The spelling of 195046866 in words is "one hundred ninety-five million, forty-six thousand, eight hundred sixty-six".