199859660000 has 960 divisors, whose sum is σ = 674514086400. Its totient is φ = 56263680000.

The previous prime is 199859659997. The next prime is 199859660083. The reversal of 199859660000 is 66958991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1341339926 + ... + 1341340074.

It is an arithmetic number, because the mean of its divisors is an integer number (702618840).

Almost surely, 2^199859660000 is an apocalyptic number.

199859660000 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 199859660000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337257043200).

199859660000 is an abundant number, since it is smaller than the sum of its proper divisors (474654426400).

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

199859660000 is a wasteful number, since it uses less digits than its factorization.

199859660000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 199859660000 in words is "one hundred ninety-nine billion, eight hundred fifty-nine million, six hundred sixty thousand".