196899967680 has 448 divisors, whose sum is σ = 743861035008. Its totient is φ = 43632230400.

The previous prime is 196899967673. The next prime is 196899967681. The reversal of 196899967680 is 86769998691.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 196899967596 and 196899967605.

It is not an unprimeable number, because it can be changed into a prime (196899967681) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4859505 + ... + 4899855.

It is an arithmetic number, because the mean of its divisors is an integer number (1660404096).

Almost surely, 2^196899967680 is an apocalyptic number.

196899967680 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 196899967680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371930517504).

196899967680 is an abundant number, since it is smaller than the sum of its proper divisors (546961067328).

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

196899967680 is a wasteful number, since it uses less digits than its factorization.

196899967680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40424 (or 40414 counting only the distinct ones).

The product of its (nonzero) digits is 634894848, while the sum is 78.

The spelling of 196899967680 in words is "one hundred ninety-six billion, eight hundred ninety-nine million, nine hundred sixty-seven thousand, six hundred eighty".