199816835371 has 2 divisors, whose sum is σ = 199816835372. Its totient is φ = 199816835370.

The previous prime is 199816835359. The next prime is 199816835417. The reversal of 199816835371 is 173538618991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199816835371 - 2¹⁷ = 199816704299 is a prime.

It is not a weakly prime, because it can be changed into another prime (199816839371) 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 as a sum of consecutive naturals, namely, 99908417685 + 99908417686.

It is an arithmetic number, because the mean of its divisors is an integer number (99908417686).

Almost surely, 2^199816835371 is an apocalyptic number.

199816835371 is a deficient number, since it is larger than the sum of its proper divisors (1).

199816835371 is an equidigital number, since it uses as much as digits as its factorization.

199816835371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 61.

The spelling of 199816835371 in words is "one hundred ninety-nine billion, eight hundred sixteen million, eight hundred thirty-five thousand, three hundred seventy-one".