200105915917 has 2 divisors, whose sum is σ = 200105915918. Its totient is φ = 200105915916.

The previous prime is 200105915897. The next prime is 200105915921. The reversal of 200105915917 is 719519501002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197687833641 + 2418082276 = 444621^2 + 49174^2 .

It is a cyclic number.

It is not a de Polignac number, because 200105915917 - 2¹⁵ = 200105883149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200105915917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200105915017) 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, 100052957958 + 100052957959.

It is an arithmetic number, because the mean of its divisors is an integer number (100052957959).

Almost surely, 2^200105915917 is an apocalyptic number.

It is an amenable number.

200105915917 is a deficient number, since it is larger than the sum of its proper divisors (1).

200105915917 is an equidigital number, since it uses as much as digits as its factorization.

200105915917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28350, while the sum is 40.

The spelling of 200105915917 in words is "two hundred billion, one hundred five million, nine hundred fifteen thousand, nine hundred seventeen".