195556668568 has 16 divisors (see below), whose sum is σ = 366710463000. Its totient is φ = 97767211776.

The previous prime is 195556668553. The next prime is 195556668611. The reversal of 195556668568 is 865866655591.

It is a junction number, because it is equal to n+sod(n) for n = 195556668497 and 195556668506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315353 + ... + 1456456.

Almost surely, 2^195556668568 is an apocalyptic number.

It is an amenable number.

195556668568 is a deficient number, since it is larger than the sum of its proper divisors (171153794432).

195556668568 is a wasteful number, since it uses less digits than its factorization.

195556668568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780634 (or 2780630 counting only the distinct ones).

The product of its digits is 466560000, while the sum is 70.

The spelling of 195556668568 in words is "one hundred ninety-five billion, five hundred fifty-six million, six hundred sixty-eight thousand, five hundred sixty-eight".