198036110787840 has 2016 divisors, whose sum is σ = 853674792122880. Its totient is φ = 43464269758464.

The previous prime is 198036110787839. The next prime is 198036110787899. The reversal of 198036110787840 is 48787011630891.

198036110787840 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 3 + 611 + 0 + 7 + 8 + 7 + 8 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 3918145609 + ... + 3918196151.

It is an arithmetic number, because the mean of its divisors is an integer number (423449797680).

Almost surely, 2^{198036110787840} is an apocalyptic number.

198036110787840 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 198036110787840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426837396061440).

198036110787840 is an abundant number, since it is smaller than the sum of its proper divisors (655638681335040).

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

198036110787840 is a wasteful number, since it uses less digits than its factorization.

198036110787840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50631 (or 50602 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 63.

The spelling of 198036110787840 in words is "one hundred ninety-eight trillion, thirty-six billion, one hundred ten million, seven hundred eighty-seven thousand, eight hundred forty".