195696447540000 has 480 divisors, whose sum is σ = 700852869541440. Its totient is φ = 47402764800000.

The previous prime is 195696447539959. The next prime is 195696447540001. The reversal of 195696447540000 is 45744696591.

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

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (195696447540001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 811019370 + ... + 811260630.

It is an arithmetic number, because the mean of its divisors is an integer number (1460110144878).

Almost surely, 2^{195696447540000} is an apocalyptic number.

195696447540000 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 195696447540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350426434770720).

195696447540000 is an abundant number, since it is smaller than the sum of its proper divisors (505156422001440).

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

195696447540000 is a wasteful number, since it uses less digits than its factorization.

195696447540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242534 (or 242511 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 195696447540000 in words is "one hundred ninety-five trillion, six hundred ninety-six billion, four hundred forty-seven million, five hundred forty thousand".