195808512900 has 720 divisors, whose sum is σ = 776877651648. Its totient is φ = 37537920000.

The previous prime is 195808512899. The next prime is 195808512919. The reversal of 195808512900 is 9215808591.

It is a self number, because there is not a number n which added to its sum of digits gives 195808512900.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 103001950 + ... + 103003850.

Almost surely, 2^195808512900 is an apocalyptic number.

195808512900 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 195808512900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (388438825824).

195808512900 is an abundant number, since it is smaller than the sum of its proper divisors (581069138748).

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

195808512900 is a wasteful number, since it uses less digits than its factorization.

195808512900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1942 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 48.

The spelling of 195808512900 in words is "one hundred ninety-five billion, eight hundred eight million, five hundred twelve thousand, nine hundred".