16664107 has 2 divisors, whose sum is σ = 16664108. Its totient is φ = 16664106.

The previous prime is 16664059. The next prime is 16664111. The reversal of 16664107 is 70146661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16664107 is a prime.

It is not a weakly prime, because it can be changed into another prime (16664507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8332053 + 8332054.

It is an arithmetic number, because the mean of its divisors is an integer number (8332054).

Almost surely, 2^16664107 is an apocalyptic number.

16664107 is a deficient number, since it is larger than the sum of its proper divisors (1).

16664107 is an equidigital number, since it uses as much as digits as its factorization.

16664107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16664107 is about 4082.1693987389. The cubic root of 16664107 is about 255.4234001503.

The spelling of 16664107 in words is "sixteen million, six hundred sixty-four thousand, one hundred seven".