199116837912 has 64 divisors (see below), whose sum is σ = 501572062080. Its totient is φ = 65868568832.

The previous prime is 199116837847. The next prime is 199116837917. The reversal of 199116837912 is 219738611991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199116837917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15259663 + ... + 15272705.

It is an arithmetic number, because the mean of its divisors is an integer number (7837063470).

Almost surely, 2^199116837912 is an apocalyptic number.

199116837912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199116837912 is an abundant number, since it is smaller than the sum of its proper divisors (302455224168).

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

199116837912 is a wasteful number, since it uses less digits than its factorization.

199116837912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17832 (or 17828 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 57.

The spelling of 199116837912 in words is "one hundred ninety-nine billion, one hundred sixteen million, eight hundred thirty-seven thousand, nine hundred twelve".