195030666 has 20 divisors (see below), whose sum is σ = 437013522. Its totient is φ = 65010168.

The previous prime is 195030659. The next prime is 195030677. The reversal of 195030666 is 666030591.

195030666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 101425041 + 93605625 = 10071^2 + 9675^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195030666.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 601785 + ... + 602108.

Almost surely, 2^195030666 is an apocalyptic number.

195030666 is an abundant number, since it is smaller than the sum of its proper divisors (241982856).

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

195030666 is a wasteful number, since it uses less digits than its factorization.

195030666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203907 (or 1203898 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 195030666 is about 13965.3380195397. The cubic root of 195030666 is about 579.9193962503.

The spelling of 195030666 in words is "one hundred ninety-five million, thirty thousand, six hundred sixty-six".