20366726741 has 2 divisors, whose sum is σ = 20366726742. Its totient is φ = 20366726740.

The previous prime is 20366726713. The next prime is 20366726747. The reversal of 20366726741 is 14762766302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13565260900 + 6801465841 = 116470^2 + 82471^2 .

It is a cyclic number.

It is not a de Polignac number, because 20366726741 - 2¹⁸ = 20366464597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20366726692 and 20366726701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20366726747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10183363370 + 10183363371.

It is an arithmetic number, because the mean of its divisors is an integer number (10183363371).

Almost surely, 2^20366726741 is an apocalyptic number.

It is an amenable number.

20366726741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20366726741 is an equidigital number, since it uses as much as digits as its factorization.

20366726741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 44.

The spelling of 20366726741 in words is "twenty billion, three hundred sixty-six million, seven hundred twenty-six thousand, seven hundred forty-one".