11166613 has 2 divisors, whose sum is σ = 11166614. Its totient is φ = 11166612.

The previous prime is 11166611. The next prime is 11166629. The reversal of 11166613 is 31666111.

11166613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10614564 + 552049 = 3258^2 + 743^2 .

It is a cyclic number.

It is not a de Polignac number, because 11166613 - 2¹ = 11166611 is a prime.

Together with 11166611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11166611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583306 + 5583307.

It is an arithmetic number, because the mean of its divisors is an integer number (5583307).

Almost surely, 2^11166613 is an apocalyptic number.

It is an amenable number.

11166613 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166613 is an equidigital number, since it uses as much as digits as its factorization.

11166613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 11166613 is about 3341.6482460008. The cubic root of 11166613 is about 223.5152476889.

The spelling of 11166613 in words is "eleven million, one hundred sixty-six thousand, six hundred thirteen".