11066720543 has 2 divisors, whose sum is σ = 11066720544. Its totient is φ = 11066720542.

The previous prime is 11066720477. The next prime is 11066720551. The reversal of 11066720543 is 34502766011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11066720543 - 2²⁴ = 11049943327 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11066720593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533360271 + 5533360272.

It is an arithmetic number, because the mean of its divisors is an integer number (5533360272).

Almost surely, 2^11066720543 is an apocalyptic number.

11066720543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11066720543 is an equidigital number, since it uses as much as digits as its factorization.

11066720543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 11066720543 in words is "eleven billion, sixty-six million, seven hundred twenty thousand, five hundred forty-three".