11566073 has 2 divisors, whose sum is σ = 11566074. Its totient is φ = 11566072.

The previous prime is 11566057. The next prime is 11566123. The reversal of 11566073 is 37066511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10582009 + 984064 = 3253^2 + 992^2 .

It is a cyclic number.

It is not a de Polignac number, because 11566073 - 2⁴ = 11566057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11566013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5783036 + 5783037.

It is an arithmetic number, because the mean of its divisors is an integer number (5783037).

Almost surely, 2^11566073 is an apocalyptic number.

It is an amenable number.

11566073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11566073 is an equidigital number, since it uses as much as digits as its factorization.

11566073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 11566073 is about 3400.8929709710. The cubic root of 11566073 is about 226.1493322186.

The spelling of 11566073 in words is "eleven million, five hundred sixty-six thousand, seventy-three".