20126330666711 has 2 divisors, whose sum is σ = 20126330666712. Its totient is φ = 20126330666710.

The previous prime is 20126330666683. The next prime is 20126330666731. The reversal of 20126330666711 is 11766603362102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20126330666711 - 2¹⁸ = 20126330404567 is a prime.

It is a super-2 number, since 2×20126330666711² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20126330666731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063165333355 + 10063165333356.

It is an arithmetic number, because the mean of its divisors is an integer number (10063165333356).

Almost surely, 2^{20126330666711} is an apocalyptic number.

20126330666711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20126330666711 is an equidigital number, since it uses as much as digits as its factorization.

20126330666711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 20126330666711 in words is "twenty trillion, one hundred twenty-six billion, three hundred thirty million, six hundred sixty-six thousand, seven hundred eleven".