20196065933 has 2 divisors, whose sum is σ = 20196065934. Its totient is φ = 20196065932.

The previous prime is 20196065927. The next prime is 20196065947. The reversal of 20196065933 is 33956069102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13366365769 + 6829700164 = 115613^2 + 82642^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20196065933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20196065963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10098032966 + 10098032967.

It is an arithmetic number, because the mean of its divisors is an integer number (10098032967).

Almost surely, 2^20196065933 is an apocalyptic number.

It is an amenable number.

20196065933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20196065933 is an equidigital number, since it uses as much as digits as its factorization.

20196065933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 262440, while the sum is 44.

The spelling of 20196065933 in words is "twenty billion, one hundred ninety-six million, sixty-five thousand, nine hundred thirty-three".