11011666051109 has 4 divisors (see below), whose sum is σ = 11591227422240. Its totient is φ = 10432104679980.

The previous prime is 11011666051063. The next prime is 11011666051159. The reversal of 11011666051109 is 90115066611011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11011666051109 - 2²⁴ = 11011649273893 is a prime.

It is a super-2 number, since 2×11011666051109² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011666051159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289780685537 + ... + 289780685574.

It is an arithmetic number, because the mean of its divisors is an integer number (2897806855560).

Almost surely, 2^{11011666051109} is an apocalyptic number.

11011666051109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11011666051109 is a deficient number, since it is larger than the sum of its proper divisors (579561371131).

11011666051109 is an equidigital number, since it uses as much as digits as its factorization.

11011666051109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579561371130.

The product of its (nonzero) digits is 9720, while the sum is 38.

The spelling of 11011666051109 in words is "eleven trillion, eleven billion, six hundred sixty-six million, fifty-one thousand, one hundred nine".