195559656 has 96 divisors (see below), whose sum is σ = 517154400. Its totient is φ = 61603200.

The previous prime is 195559643. The next prime is 195559697. The reversal of 195559656 is 656955591.

It is a junction number, because it is equal to n+sod(n) for n = 195559599 and 195559608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1406835 + ... + 1406973.

It is an arithmetic number, because the mean of its divisors is an integer number (5387025).

Almost surely, 2^195559656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195559656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258577200).

195559656 is an abundant number, since it is smaller than the sum of its proper divisors (321594744).

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

195559656 is a wasteful number, since it uses less digits than its factorization.

195559656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 236 counting only the distinct ones).

The product of its digits is 1822500, while the sum is 51.

The square root of 195559656 is about 13984.2645855976. The cubic root of 195559656 is about 580.4432363013.

The spelling of 195559656 in words is "one hundred ninety-five million, five hundred fifty-nine thousand, six hundred fifty-six".