20196349133 has 2 divisors, whose sum is σ = 20196349134. Its totient is φ = 20196349132.

The previous prime is 20196349111. The next prime is 20196349139. The reversal of 20196349133 is 33194369102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16813530889 + 3382818244 = 129667^2 + 58162^2 .

It is a cyclic number.

It is not a de Polignac number, because 20196349133 - 2⁸ = 20196348877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20196349139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10098174566 + 10098174567.

It is an arithmetic number, because the mean of its divisors is an integer number (10098174567).

Almost surely, 2^20196349133 is an apocalyptic number.

It is an amenable number.

20196349133 is a deficient number, since it is larger than the sum of its proper divisors (1).

20196349133 is an equidigital number, since it uses as much as digits as its factorization.

20196349133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 41.

The spelling of 20196349133 in words is "twenty billion, one hundred ninety-six million, three hundred forty-nine thousand, one hundred thirty-three".