195986554560 has 224 divisors, whose sum is σ = 704443884480. Its totient is φ = 51276865536.

The previous prime is 195986554481. The next prime is 195986554567. The reversal of 195986554560 is 65455689591.

195986554560 is a `hidden beast` number, since 1 + 9 + 5 + 9 + 8 + 65 + 5 + 4 + 560 = 666.

195986554560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (195986554567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243924 + ... + 671916.

It is an arithmetic number, because the mean of its divisors is an integer number (3144838770).

Almost surely, 2^195986554560 is an apocalyptic number.

195986554560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195986554560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352221942240).

195986554560 is an abundant number, since it is smaller than the sum of its proper divisors (508457329920).

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

195986554560 is a wasteful number, since it uses less digits than its factorization.

195986554560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428072 (or 428056 counting only the distinct ones).

The product of its (nonzero) digits is 58320000, while the sum is 63.

The spelling of 195986554560 in words is "one hundred ninety-five billion, nine hundred eighty-six million, five hundred fifty-four thousand, five hundred sixty".