20166683 has 2 divisors, whose sum is σ = 20166684. Its totient is φ = 20166682.

The previous prime is 20166667. The next prime is 20166697. The reversal of 20166683 is 38666102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20166683 - 2⁴ = 20166667 is a prime.

It is not a weakly prime, because it can be changed into another prime (20166583) 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, 10083341 + 10083342.

It is an arithmetic number, because the mean of its divisors is an integer number (10083342).

Almost surely, 2^20166683 is an apocalyptic number.

20166683 is a deficient number, since it is larger than the sum of its proper divisors (1).

20166683 is an equidigital number, since it uses as much as digits as its factorization.

20166683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 20166683 is about 4490.7330136627. The cubic root of 20166683 is about 272.1937552227.

The spelling of 20166683 in words is "twenty million, one hundred sixty-six thousand, six hundred eighty-three".