11134134640 has 20 divisors (see below), whose sum is σ = 25886863224. Its totient is φ = 4453653824.

The previous prime is 11134134593. The next prime is 11134134643. The reversal of 11134134640 is 4643143111.

11134134640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 11134134599 and 11134134608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11134134643) 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, 69588262 + ... + 69588421.

Almost surely, 2^11134134640 is an apocalyptic number.

11134134640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11134134640 is an abundant number, since it is smaller than the sum of its proper divisors (14752728584).

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

11134134640 is a wasteful number, since it uses less digits than its factorization.

11134134640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139176696 (or 139176690 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 11134134640 its reverse (4643143111), we get a palindrome (15777277751).

The spelling of 11134134640 in words is "eleven billion, one hundred thirty-four million, one hundred thirty-four thousand, six hundred forty".