20316107797 has 2 divisors, whose sum is σ = 20316107798. Its totient is φ = 20316107796.

The previous prime is 20316107783. The next prime is 20316107803. The reversal of 20316107797 is 79770161302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14853271876 + 5462835921 = 121874^2 + 73911^2 .

It is a cyclic number.

It is not a de Polignac number, because 20316107797 - 2¹¹ = 20316105749 is a prime.

It is a super-4 number, since 4×20316107797⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20316107197) 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, 10158053898 + 10158053899.

It is an arithmetic number, because the mean of its divisors is an integer number (10158053899).

Almost surely, 2^20316107797 is an apocalyptic number.

It is an amenable number.

20316107797 is a deficient number, since it is larger than the sum of its proper divisors (1).

20316107797 is an equidigital number, since it uses as much as digits as its factorization.

20316107797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 111132, while the sum is 43.

The spelling of 20316107797 in words is "twenty billion, three hundred sixteen million, one hundred seven thousand, seven hundred ninety-seven".