199201581983 has 2 divisors, whose sum is σ = 199201581984. Its totient is φ = 199201581982.

The previous prime is 199201581967. The next prime is 199201582003. The reversal of 199201581983 is 389185102991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 199201581983 - 2⁴ = 199201581967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199201581283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99600790991 + 99600790992.

It is an arithmetic number, because the mean of its divisors is an integer number (99600790992).

Almost surely, 2^199201581983 is an apocalyptic number.

199201581983 is a deficient number, since it is larger than the sum of its proper divisors (1).

199201581983 is an equidigital number, since it uses as much as digits as its factorization.

199201581983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 199201581983 in words is "one hundred ninety-nine billion, two hundred one million, five hundred eighty-one thousand, nine hundred eighty-three".