11056544099911 has 4 divisors (see below), whose sum is σ = 11057351927152. Its totient is φ = 11055736272672.

The previous prime is 11056544099903. The next prime is 11056544099917. The reversal of 11056544099911 is 11999044565011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11056544099911 - 2³ = 11056544099903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056544099917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403893090 + ... + 403920463.

It is an arithmetic number, because the mean of its divisors is an integer number (2764337981788).

Almost surely, 2^{11056544099911} is an apocalyptic number.

11056544099911 is a deficient number, since it is larger than the sum of its proper divisors (807827241).

11056544099911 is an equidigital number, since it uses as much as digits as its factorization.

11056544099911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807827240.

The product of its (nonzero) digits is 1749600, while the sum is 55.

The spelling of 11056544099911 in words is "eleven trillion, fifty-six billion, five hundred forty-four million, ninety-nine thousand, nine hundred eleven".