199206000000 has 1792 divisors, whose sum is σ = 917988249600. Its totient is φ = 41472000000.

The previous prime is 199205999921. The next prime is 199206000011. The reversal of 199206000000 is 602991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 6425999985 + ... + 6426000015.

Almost surely, 2^199206000000 is an apocalyptic number.

199206000000 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 199206000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458994124800).

199206000000 is an abundant number, since it is smaller than the sum of its proper divisors (718782249600).

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

199206000000 is an frugal number, since it uses more digits than its factorization.

199206000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

Adding to 199206000000 its reverse (602991), we get a palindrome (199206602991).

The spelling of 199206000000 in words is "one hundred ninety-nine billion, two hundred six million", and thus it is an aban number.