11564021334 has 16 divisors (see below), whose sum is σ = 23134003200. Its totient is φ = 3853680360.

The previous prime is 11564021321. The next prime is 11564021377. The reversal of 11564021334 is 43312046511.

11564021334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 222934 + ... + 269865.

It is an arithmetic number, because the mean of its divisors is an integer number (1445875200).

Almost surely, 2^11564021334 is an apocalyptic number.

11564021334 is an abundant number, since it is smaller than the sum of its proper divisors (11569981866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11564021334 is a wasteful number, since it uses less digits than its factorization.

11564021334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496715.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 11564021334 its reverse (43312046511), we get a palindrome (54876067845).

The spelling of 11564021334 in words is "eleven billion, five hundred sixty-four million, twenty-one thousand, three hundred thirty-four".