11566814411 has 8 divisors (see below), whose sum is σ = 11594566464. Its totient is φ = 11539087560.

The previous prime is 11566814381. The next prime is 11566814437. The reversal of 11566814411 is 11441866511.

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 11566814411 - 2¹⁸ = 11566552267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11566814461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1160696 + ... + 1170618.

It is an arithmetic number, because the mean of its divisors is an integer number (1449320808).

Almost surely, 2^11566814411 is an apocalyptic number.

11566814411 is a deficient number, since it is larger than the sum of its proper divisors (27752053).

11566814411 is an equidigital number, since it uses as much as digits as its factorization.

11566814411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12601.

The product of its digits is 23040, while the sum is 38.

The spelling of 11566814411 in words is "eleven billion, five hundred sixty-six million, eight hundred fourteen thousand, four hundred eleven".