11643164 has 24 divisors (see below), whose sum is σ = 23235408. Its totient is φ = 5057280.

The previous prime is 11643161. The next prime is 11643209. The reversal of 11643164 is 46134611.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11643161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5702 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (968142).

Almost surely, 2^11643164 is an apocalyptic number.

It is an amenable number.

11643164 is a deficient number, since it is larger than the sum of its proper divisors (11592244).

11643164 is a wasteful number, since it uses less digits than its factorization.

11643164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13205 (or 13203 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 11643164 is about 3412.2080827523. The cubic root of 11643164 is about 226.6506688056.

Adding to 11643164 its reverse (46134611), we get a palindrome (57777775).

The spelling of 11643164 in words is "eleven million, six hundred forty-three thousand, one hundred sixty-four".