200953993217 has 2 divisors, whose sum is σ = 200953993218. Its totient is φ = 200953993216.

The previous prime is 200953993213. The next prime is 200953993231. The reversal of 200953993217 is 712399359002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188533113616 + 12420879601 = 434204^2 + 111449^2 .

It is a cyclic number.

It is not a de Polignac number, because 200953993217 - 2² = 200953993213 is a prime.

It is not a weakly prime, because it can be changed into another prime (200953993213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100476996608 + 100476996609.

It is an arithmetic number, because the mean of its divisors is an integer number (100476996609).

Almost surely, 2^200953993217 is an apocalyptic number.

It is an amenable number.

200953993217 is a deficient number, since it is larger than the sum of its proper divisors (1).

200953993217 is an equidigital number, since it uses as much as digits as its factorization.

200953993217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 200953993217 in words is "two hundred billion, nine hundred fifty-three million, nine hundred ninety-three thousand, two hundred seventeen".