196199967840 has 192 divisors, whose sum is σ = 623324782080. Its totient is φ = 51872808960.

The previous prime is 196199967827. The next prime is 196199967917. The reversal of 196199967840 is 48769991691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64516720 + ... + 64519760.

It is an arithmetic number, because the mean of its divisors is an integer number (3246483240).

Almost surely, 2^196199967840 is an apocalyptic number.

196199967840 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 196199967840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311662391040).

196199967840 is an abundant number, since it is smaller than the sum of its proper divisors (427124814240).

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

196199967840 is a wasteful number, since it uses less digits than its factorization.

196199967840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165 (or 4157 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 69.

The spelling of 196199967840 in words is "one hundred ninety-six billion, one hundred ninety-nine million, nine hundred sixty-seven thousand, eight hundred forty".