11663005 has 8 divisors (see below), whose sum is σ = 14153400. Its totient is φ = 9225216.

The previous prime is 11662997. The next prime is 11663009. The reversal of 11663005 is 50036611.

It can be written as a sum of positive squares in 4 ways, for example, as 89401 + 11573604 = 299^2 + 3402^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11663005 - 2³ = 11662997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12660 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (1769175).

Almost surely, 2^11663005 is an apocalyptic number.

It is an amenable number.

11663005 is a deficient number, since it is larger than the sum of its proper divisors (2490395).

11663005 is an equidigital number, since it uses as much as digits as its factorization.

11663005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26303.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 11663005 is about 3415.1142001403. The cubic root of 11663005 is about 226.7793401277.

Adding to 11663005 its reverse (50036611), we get a palindrome (61699616).

The spelling of 11663005 in words is "eleven million, six hundred sixty-three thousand, five".