21164012026711 has 2 divisors, whose sum is σ = 21164012026712. Its totient is φ = 21164012026710.

The previous prime is 21164012026583. The next prime is 21164012026721. The reversal of 21164012026711 is 11762021046112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21164012026711 - 2⁷ = 21164012026583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21164012026721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10582006013355 + 10582006013356.

It is an arithmetic number, because the mean of its divisors is an integer number (10582006013356).

Almost surely, 2^{21164012026711} is an apocalyptic number.

21164012026711 is a deficient number, since it is larger than the sum of its proper divisors (1).

21164012026711 is an equidigital number, since it uses as much as digits as its factorization.

21164012026711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 21164012026711 in words is "twenty-one trillion, one hundred sixty-four billion, twelve million, twenty-six thousand, seven hundred eleven".