11664445 has 8 divisors (see below), whose sum is σ = 15074136. Its totient is φ = 8613696.

The previous prime is 11664437. The next prime is 11664479. The reversal of 11664445 is 54446611.

It can be written as a sum of positive squares in 4 ways, for example, as 2042041 + 9622404 = 1429^2 + 3102^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11664445 - 2³ = 11664437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89662 + ... + 89791.

It is an arithmetic number, because the mean of its divisors is an integer number (1884267).

Almost surely, 2^11664445 is an apocalyptic number.

It is an amenable number.

11664445 is a deficient number, since it is larger than the sum of its proper divisors (3409691).

11664445 is a wasteful number, since it uses less digits than its factorization.

11664445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179471.

The product of its digits is 11520, while the sum is 31.

The square root of 11664445 is about 3415.3250211363. The cubic root of 11664445 is about 226.7886730229.

The spelling of 11664445 in words is "eleven million, six hundred sixty-four thousand, four hundred forty-five".