11066311543 has 16 divisors (see below), whose sum is σ = 13078195200. Its totient is φ = 9167517216.

The previous prime is 11066311511. The next prime is 11066311567. The reversal of 11066311543 is 34511366011.

It is a cyclic number.

It is not a de Polignac number, because 11066311543 - 2⁵ = 11066311511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066311043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197743 + ... + 247456.

It is an arithmetic number, because the mean of its divisors is an integer number (817387200).

Almost surely, 2^11066311543 is an apocalyptic number.

11066311543 is a deficient number, since it is larger than the sum of its proper divisors (2011883657).

11066311543 is an equidigital number, since it uses as much as digits as its factorization.

11066311543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445326.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 11066311543 its reverse (34511366011), we get a palindrome (45577677554).

The spelling of 11066311543 in words is "eleven billion, sixty-six million, three hundred eleven thousand, five hundred forty-three".