16666093 has 2 divisors, whose sum is σ = 16666094. Its totient is φ = 16666092.

The previous prime is 16666081. The next prime is 16666141. The reversal of 16666093 is 39066661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16337764 + 328329 = 4042^2 + 573^2 .

It is a cyclic number.

It is not a de Polignac number, because 16666093 - 2⁵ = 16666061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16666033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8333046 + 8333047.

It is an arithmetic number, because the mean of its divisors is an integer number (8333047).

Almost surely, 2^16666093 is an apocalyptic number.

It is an amenable number.

16666093 is a deficient number, since it is larger than the sum of its proper divisors (1).

16666093 is an equidigital number, since it uses as much as digits as its factorization.

16666093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 16666093 is about 4082.4126445032. The cubic root of 16666093 is about 255.4335467230.

It can be divided in two parts, 166660 and 93, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 16666093 in words is "sixteen million, six hundred sixty-six thousand, ninety-three".