20366722601 has 2 divisors, whose sum is σ = 20366722602. Its totient is φ = 20366722600.

The previous prime is 20366722561. The next prime is 20366722667. The reversal of 20366722601 is 10622766302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10868271001 + 9498451600 = 104251^2 + 97460^2 .

It is a cyclic number.

It is not a de Polignac number, because 20366722601 - 2¹⁰ = 20366721577 is a prime.

It is not a weakly prime, because it can be changed into another prime (20366722501) 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, 10183361300 + 10183361301.

It is an arithmetic number, because the mean of its divisors is an integer number (10183361301).

Almost surely, 2^20366722601 is an apocalyptic number.

It is an amenable number.

20366722601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20366722601 is an equidigital number, since it uses as much as digits as its factorization.

20366722601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20366722601 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-two thousand, six hundred one".