199997599301 has 2 divisors, whose sum is σ = 199997599302. Its totient is φ = 199997599300.

The previous prime is 199997599297. The next prime is 199997599327. The reversal of 199997599301 is 103995799991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199961008900 + 36590401 = 447170^2 + 6049^2 .

It is a cyclic number.

It is not a de Polignac number, because 199997599301 - 2² = 199997599297 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199997599381) 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, 99998799650 + 99998799651.

It is an arithmetic number, because the mean of its divisors is an integer number (99998799651).

Almost surely, 2^199997599301 is an apocalyptic number.

It is an amenable number.

199997599301 is a deficient number, since it is larger than the sum of its proper divisors (1).

199997599301 is an equidigital number, since it uses as much as digits as its factorization.

199997599301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55801305, while the sum is 71.

The spelling of 199997599301 in words is "one hundred ninety-nine billion, nine hundred ninety-seven million, five hundred ninety-nine thousand, three hundred one".