11164644 has 18 divisors (see below), whose sum is σ = 28221830. Its totient is φ = 3721536.

The previous prime is 11164607. The next prime is 11164651. The reversal of 11164644 is 44646111.

11164644 is a `hidden beast` number, since 1 + 1 + 16 + 4 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 1166400 = 3162^2 + 1080^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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

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 5 ways as a sum of consecutive naturals, for example, 155029 + ... + 155100.

Almost surely, 2^11164644 is an apocalyptic number.

It is an amenable number.

11164644 is an abundant number, since it is smaller than the sum of its proper divisors (17057186).

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

11164644 is a wasteful number, since it uses less digits than its factorization.

11164644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310139 (or 310134 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 11164644 is about 3341.3536179219. The cubic root of 11164644 is about 223.5021094947.

The spelling of 11164644 in words is "eleven million, one hundred sixty-four thousand, six hundred forty-four".