11660549 has 2 divisors, whose sum is σ = 11660550. Its totient is φ = 11660548.

The previous prime is 11660503. The next prime is 11660567. The reversal of 11660549 is 94506611.

11660549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11607649 + 52900 = 3407^2 + 230^2 .

It is an emirp because it is prime and its reverse (94506611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11660549 - 2²⁰ = 10611973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11660599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830274 + 5830275.

It is an arithmetic number, because the mean of its divisors is an integer number (5830275).

Almost surely, 2^11660549 is an apocalyptic number.

It is an amenable number.

11660549 is a deficient number, since it is larger than the sum of its proper divisors (1).

11660549 is an equidigital number, since it uses as much as digits as its factorization.

11660549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 11660549 is about 3414.7546031889. The cubic root of 11660549 is about 226.7634205838.

The spelling of 11660549 in words is "eleven million, six hundred sixty thousand, five hundred forty-nine".