196561542328 has 16 divisors (see below), whose sum is σ = 369986953680. Its totient is φ = 97898354688.

The previous prime is 196561542323. The next prime is 196561542349. The reversal of 196561542328 is 823245165691.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196561542323) 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, 47799876 + ... + 47803987.

It is an arithmetic number, because the mean of its divisors is an integer number (23124184605).

Almost surely, 2^196561542328 is an apocalyptic number.

It is an amenable number.

196561542328 is a deficient number, since it is larger than the sum of its proper divisors (173425411352).

196561542328 is a wasteful number, since it uses less digits than its factorization.

196561542328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95604126 (or 95604122 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 52.

The spelling of 196561542328 in words is "one hundred ninety-six billion, five hundred sixty-one million, five hundred forty-two thousand, three hundred twenty-eight".