195665942 has 8 divisors (see below), whose sum is σ = 293572416. Its totient is φ = 97808472.

The previous prime is 195665849. The next prime is 195665947. The reversal of 195665942 is 249566591.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195665947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308 + ... + 19784.

It is an arithmetic number, because the mean of its divisors is an integer number (36696552).

Almost surely, 2^195665942 is an apocalyptic number.

195665942 is a deficient number, since it is larger than the sum of its proper divisors (97906474).

195665942 is a wasteful number, since it uses less digits than its factorization.

195665942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24502.

The product of its digits is 583200, while the sum is 47.

The square root of 195665942 is about 13988.0642692261. The cubic root of 195665942 is about 580.5483735568.

The spelling of 195665942 in words is "one hundred ninety-five million, six hundred sixty-five thousand, nine hundred forty-two".