11664432004 has 9 divisors (see below), whose sum is σ = 20413134021. Its totient is φ = 5832108000.

The previous prime is 11664431993. The next prime is 11664432007. The reversal of 11664432004 is 40023446611.

The square root of 11664432004 is 108002.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2540361604 + 9124070400 = 50402^2 + 95520^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11664432007) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 189004 + ... + 243004.

Almost surely, 2^11664432004 is an apocalyptic number.

11664432004 is the 108002-nd square number.

It is an amenable number.

11664432004 is a deficient number, since it is larger than the sum of its proper divisors (8748702017).

11664432004 is an frugal number, since it uses more digits than its factorization.

11664432004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108006 (or 54003 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 11664432004 its reverse (40023446611), we get a palindrome (51687878615).

The spelling of 11664432004 in words is "eleven billion, six hundred sixty-four million, four hundred thirty-two thousand, four".