200199596981 has 2 divisors, whose sum is σ = 200199596982. Its totient is φ = 200199596980.

The previous prime is 200199596917. The next prime is 200199597001. The reversal of 200199596981 is 189695991002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123267699025 + 76931897956 = 351095^2 + 277366^2 .

It is a cyclic number.

It is not a de Polignac number, because 200199596981 - 2⁶ = 200199596917 is a prime.

It is a super-2 number, since 2×200199596981² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200199596981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200199596911) 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, 100099798490 + 100099798491.

It is an arithmetic number, because the mean of its divisors is an integer number (100099798491).

Almost surely, 2^200199596981 is an apocalyptic number.

It is an amenable number.

200199596981 is a deficient number, since it is larger than the sum of its proper divisors (1).

200199596981 is an equidigital number, since it uses as much as digits as its factorization.

200199596981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3149280, while the sum is 59.

The spelling of 200199596981 in words is "two hundred billion, one hundred ninety-nine million, five hundred ninety-six thousand, nine hundred eighty-one".