195388992000 has 480 divisors, whose sum is σ = 709561442304. Its totient is φ = 51674112000.

The previous prime is 195388991999. The next prime is 195388992049. The reversal of 195388992000 is 299883591.

195388992000 is a `hidden beast` number, since 1 + 9 + 538 + 89 + 9 + 20 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73150665 + ... + 73153335.

Almost surely, 2^195388992000 is an apocalyptic number.

195388992000 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 195388992000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354780721152).

195388992000 is an abundant number, since it is smaller than the sum of its proper divisors (514172450304).

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

195388992000 is a wasteful number, since it uses less digits than its factorization.

195388992000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 195388992000 in words is "one hundred ninety-five billion, three hundred eighty-eight million, nine hundred ninety-two thousand".