199936244324057 has 2 divisors, whose sum is σ = 199936244324058. Its totient is φ = 199936244324056.

The previous prime is 199936244324009. The next prime is 199936244324081. The reversal of 199936244324057 is 750423442639991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156982757084176 + 42953487239881 = 12529276^2 + 6553891^2 .

It is a cyclic number.

It is not a de Polignac number, because 199936244324057 - 2¹⁴ = 199936244307673 is a prime.

It is not a weakly prime, because it can be changed into another prime (199936244324357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99968122162028 + 99968122162029.

It is an arithmetic number, because the mean of its divisors is an integer number (99968122162029).

Almost surely, 2^{199936244324057} is an apocalyptic number.

It is an amenable number.

199936244324057 is a deficient number, since it is larger than the sum of its proper divisors (1).

199936244324057 is an equidigital number, since it uses as much as digits as its factorization.

199936244324057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 352719360, while the sum is 68.

The spelling of 199936244324057 in words is "one hundred ninety-nine trillion, nine hundred thirty-six billion, two hundred forty-four million, three hundred twenty-four thousand, fifty-seven".