11664541 has 16 divisors (see below), whose sum is σ = 13829760. Its totient is φ = 9630720.

The previous prime is 11664529. The next prime is 11664547. The reversal of 11664541 is 14546611.

It is a cyclic number.

It is not a de Polignac number, because 11664541 - 2¹³ = 11656349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11664547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27630 + ... + 28048.

It is an arithmetic number, because the mean of its divisors is an integer number (864360).

Almost surely, 2^11664541 is an apocalyptic number.

It is an amenable number.

11664541 is a deficient number, since it is larger than the sum of its proper divisors (2165219).

11664541 is an equidigital number, since it uses as much as digits as its factorization.

11664541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its digits is 2880, while the sum is 28.

The square root of 11664541 is about 3415.3390754067. The cubic root of 11664541 is about 226.7892951886.

The spelling of 11664541 in words is "eleven million, six hundred sixty-four thousand, five hundred forty-one".