20314716197 has 2 divisors, whose sum is σ = 20314716198. Its totient is φ = 20314716196.

The previous prime is 20314716193. The next prime is 20314716277. The reversal of 20314716197 is 79161741302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16142718916 + 4171997281 = 127054^2 + 64591^2 .

It is a cyclic number.

It is not a de Polignac number, because 20314716197 - 2² = 20314716193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20314716193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157358098 + 10157358099.

It is an arithmetic number, because the mean of its divisors is an integer number (10157358099).

Almost surely, 2^20314716197 is an apocalyptic number.

It is an amenable number.

20314716197 is a deficient number, since it is larger than the sum of its proper divisors (1).

20314716197 is an equidigital number, since it uses as much as digits as its factorization.

20314716197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 20314716197 in words is "twenty billion, three hundred fourteen million, seven hundred sixteen thousand, one hundred ninety-seven".