11564046511 has 4 divisors (see below), whose sum is σ = 11564261800. Its totient is φ = 11563831224.

The previous prime is 11564046499. The next prime is 11564046517.

11564046511 is nontrivially palindromic in base 10.

11564046511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11564046511 - 2⁷ = 11564046383 is a prime.

It is a super-6 number, since 6×11564046511⁶ (a number of 62 digits) contains 666666 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 (11564046517) 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, 46600 + ... + 159058.

It is an arithmetic number, because the mean of its divisors is an integer number (2891065450).

Almost surely, 2^11564046511 is an apocalyptic number.

11564046511 is a deficient number, since it is larger than the sum of its proper divisors (215289).

11564046511 is a wasteful number, since it uses less digits than its factorization.

11564046511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215288.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 11564046511 in words is "eleven billion, five hundred sixty-four million, forty-six thousand, five hundred eleven".