199218366350 has 48 divisors (see below), whose sum is σ = 372770069760. Its totient is φ = 79210303200.

The previous prime is 199218366343. The next prime is 199218366359. The reversal of 199218366350 is 53663812991.

199218366350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 199218366292 and 199218366301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199218366359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6713045 + ... + 6742655.

It is an arithmetic number, because the mean of its divisors is an integer number (7766043120).

Almost surely, 2^199218366350 is an apocalyptic number.

199218366350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199218366350 is a deficient number, since it is larger than the sum of its proper divisors (173551703410).

199218366350 is a wasteful number, since it uses less digits than its factorization.

199218366350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30425 (or 30420 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The spelling of 199218366350 in words is "one hundred ninety-nine billion, two hundred eighteen million, three hundred sixty-six thousand, three hundred fifty".