199385185116 has 48 divisors (see below), whose sum is σ = 522802635264. Its totient is φ = 58681926336.

The previous prime is 199385185099. The next prime is 199385185127. The reversal of 199385185116 is 611581583991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27781416 + ... + 27788591.

It is an arithmetic number, because the mean of its divisors is an integer number (10891721568).

Almost surely, 2^199385185116 is an apocalyptic number.

It is an amenable number.

199385185116 is an abundant number, since it is smaller than the sum of its proper divisors (323417450148).

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

199385185116 is a wasteful number, since it uses less digits than its factorization.

199385185116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55570050 (or 55570048 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 57.

The spelling of 199385185116 in words is "one hundred ninety-nine billion, three hundred eighty-five million, one hundred eighty-five thousand, one hundred sixteen".