20019565201 has 2 divisors, whose sum is σ = 20019565202. Its totient is φ = 20019565200.

The previous prime is 20019565183. The next prime is 20019565219. The reversal of 20019565201 is 10256591002.

It is a balanced prime because it is at equal distance from previous prime (20019565183) and next prime (20019565219).

It can be written as a sum of positive squares in only one way, i.e., 18481043025 + 1538522176 = 135945^2 + 39224^2 .

It is a cyclic number.

It is not a de Polignac number, because 20019565201 - 2²⁹ = 19482694289 is a prime.

It is not a weakly prime, because it can be changed into another prime (20019565231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10009782600 + 10009782601.

It is an arithmetic number, because the mean of its divisors is an integer number (10009782601).

Almost surely, 2^20019565201 is an apocalyptic number.

It is an amenable number.

20019565201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20019565201 is an equidigital number, since it uses as much as digits as its factorization.

20019565201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 20019565201 in words is "twenty billion, nineteen million, five hundred sixty-five thousand, two hundred one".