11643464136 has 32 divisors (see below), whose sum is σ = 29113783200. Its totient is φ = 3880471680.

The previous prime is 11643464083. The next prime is 11643464141. The reversal of 11643464136 is 63146434611.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11643464094 and 11643464103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107275 + ... + 186533.

It is an arithmetic number, because the mean of its divisors is an integer number (909805725).

Almost surely, 2^11643464136 is an apocalyptic number.

It is an amenable number.

11643464136 is an abundant number, since it is smaller than the sum of its proper divisors (17470319064).

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

11643464136 is a wasteful number, since it uses less digits than its factorization.

11643464136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85389 (or 85385 counting only the distinct ones).

The product of its digits is 124416, while the sum is 39.

Adding to 11643464136 its reverse (63146434611), we get a palindrome (74789898747).

The spelling of 11643464136 in words is "eleven billion, six hundred forty-three million, four hundred sixty-four thousand, one hundred thirty-six".