199933381008 has 60 divisors (see below), whose sum is σ = 583863433920. Its totient is φ = 63746874048.

The previous prime is 199933380991. The next prime is 199933381009. The reversal of 199933381008 is 800183339991.

It is not an unprimeable number, because it can be changed into a prime (199933381009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30179868 + ... + 30186491.

It is an arithmetic number, because the mean of its divisors is an integer number (9731057232).

Almost surely, 2^199933381008 is an apocalyptic number.

199933381008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

199933381008 is an abundant number, since it is smaller than the sum of its proper divisors (383930052912).

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

199933381008 is a wasteful number, since it uses less digits than its factorization.

199933381008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60366396 (or 60366387 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 199933381008 in words is "one hundred ninety-nine billion, nine hundred thirty-three million, three hundred eighty-one thousand, eight".