11166643 has 2 divisors, whose sum is σ = 11166644. Its totient is φ = 11166642.

The previous prime is 11166629. The next prime is 11166679. The reversal of 11166643 is 34666111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11166643 - 2⁵ = 11166611 is a prime.

It is not a weakly prime, because it can be changed into another prime (11166613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5583321 + 5583322.

It is an arithmetic number, because the mean of its divisors is an integer number (5583322).

Almost surely, 2^11166643 is an apocalyptic number.

11166643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11166643 is an equidigital number, since it uses as much as digits as its factorization.

11166643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 11166643 is about 3341.6527348006. The cubic root of 11166643 is about 223.5154478526.

The spelling of 11166643 in words is "eleven million, one hundred sixty-six thousand, six hundred forty-three".