20334245497 has 2 divisors, whose sum is σ = 20334245498. Its totient is φ = 20334245496.

The previous prime is 20334245489. The next prime is 20334245501. The reversal of 20334245497 is 79454243302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10362425616 + 9971819881 = 101796^2 + 99859^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334245497 - 2³ = 20334245489 is a prime.

It is not a weakly prime, because it can be changed into another prime (20334240497) 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, 10167122748 + 10167122749.

It is an arithmetic number, because the mean of its divisors is an integer number (10167122749).

Almost surely, 2^20334245497 is an apocalyptic number.

It is an amenable number.

20334245497 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334245497 is an equidigital number, since it uses as much as digits as its factorization.

20334245497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 43.

Adding to 20334245497 its reverse (79454243302), we get a palindrome (99788488799).

The spelling of 20334245497 in words is "twenty billion, three hundred thirty-four million, two hundred forty-five thousand, four hundred ninety-seven".