196994517821760 has 448 divisors, whose sum is σ = 645105140064000. Its totient is φ = 50901664923648.

The previous prime is 196994517821749. The next prime is 196994517821771. The reversal of 196994517821760 is 67128715499691.

It is an interprime number because it is at equal distance from previous prime (196994517821749) and next prime (196994517821771).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9099463416 + ... + 9099485064.

It is an arithmetic number, because the mean of its divisors is an integer number (1439966830500).

Almost surely, 2^{196994517821760} is an apocalyptic number.

196994517821760 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 196994517821760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322552570032000).

196994517821760 is an abundant number, since it is smaller than the sum of its proper divisors (448110622242240).

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

196994517821760 is a wasteful number, since it uses less digits than its factorization.

196994517821760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23458 (or 23448 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 75.

The spelling of 196994517821760 in words is "one hundred ninety-six trillion, nine hundred ninety-four billion, five hundred seventeen million, eight hundred twenty-one thousand, seven hundred sixty".