11556511044411 has 8 divisors (see below), whose sum is σ = 15410729632320. Its totient is φ = 7703316576392.

The previous prime is 11556511044371. The next prime is 11556511044433. The reversal of 11556511044411 is 11444011565511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11556511044411 - 2¹⁰ = 11556511043387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11556511044411.

It is not an unprimeable number, because it can be changed into a prime (11556511044311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256003641 + ... + 256048778.

It is an arithmetic number, because the mean of its divisors is an integer number (1926341204040).

Almost surely, 2^{11556511044411} is an apocalyptic number.

11556511044411 is a deficient number, since it is larger than the sum of its proper divisors (3854218587909).

11556511044411 is an equidigital number, since it uses as much as digits as its factorization.

11556511044411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512059945.

The product of its (nonzero) digits is 48000, while the sum is 39.

The spelling of 11556511044411 in words is "eleven trillion, five hundred fifty-six billion, five hundred eleven million, forty-four thousand, four hundred eleven".