195819597656 has 16 divisors (see below), whose sum is σ = 367240386600. Its totient is φ = 97888827904.

The previous prime is 195819597653. The next prime is 195819597667. The reversal of 195819597656 is 656795918591.

It is a self number, because there is not a number n which added to its sum of digits gives 195819597656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195819597653) 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, 2581646 + ... + 2656413.

Almost surely, 2^195819597656 is an apocalyptic number.

It is an amenable number.

195819597656 is a deficient number, since it is larger than the sum of its proper divisors (171420788944).

195819597656 is a wasteful number, since it uses less digits than its factorization.

195819597656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5242738 (or 5242734 counting only the distinct ones).

The product of its digits is 183708000, while the sum is 71.

The spelling of 195819597656 in words is "one hundred ninety-five billion, eight hundred nineteen million, five hundred ninety-seven thousand, six hundred fifty-six".