196297156866 has 16 divisors (see below), whose sum is σ = 392684143104. Its totient is φ = 65417414064.

The previous prime is 196297156807. The next prime is 196297156879. The reversal of 196297156866 is 668651792691.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 196297156797 and 196297156806.

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 7 ways as a sum of consecutive naturals, for example, 3714466 + ... + 3766941.

It is an arithmetic number, because the mean of its divisors is an integer number (24542758944).

Almost surely, 2^196297156866 is an apocalyptic number.

196297156866 is an abundant number, since it is smaller than the sum of its proper divisors (196386986238).

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

196297156866 is a wasteful number, since it uses less digits than its factorization.

196297156866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485785.

The product of its digits is 58786560, while the sum is 66.

The spelling of 196297156866 in words is "one hundred ninety-six billion, two hundred ninety-seven million, one hundred fifty-six thousand, eight hundred sixty-six".