195666235112 has 16 divisors (see below), whose sum is σ = 388455025860. Its totient is φ = 92078228224.

The previous prime is 195666235103. The next prime is 195666235151. The reversal of 195666235112 is 211532666591.

It can be written as a sum of positive squares in 2 ways, for example, as 192557726596 + 3108508516 = 438814^2 + 55754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719361023 + ... + 719361294.

Almost surely, 2^195666235112 is an apocalyptic number.

It is an amenable number.

195666235112 is a deficient number, since it is larger than the sum of its proper divisors (192788790748).

195666235112 is a wasteful number, since it uses less digits than its factorization.

195666235112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438722340 (or 1438722336 counting only the distinct ones).

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

The spelling of 195666235112 in words is "one hundred ninety-five billion, six hundred sixty-six million, two hundred thirty-five thousand, one hundred twelve".