16466669 has 2 divisors, whose sum is σ = 16466670. Its totient is φ = 16466668.

The previous prime is 16466647. The next prime is 16466677. The reversal of 16466669 is 96666461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970025 + 7496644 = 2995^2 + 2738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16466669 is a prime.

It is a super-2 number, since 2×16466669² = 542302375911122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16466629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8233334 + 8233335.

It is an arithmetic number, because the mean of its divisors is an integer number (8233335).

Almost surely, 2^16466669 is an apocalyptic number.

It is an amenable number.

16466669 is a deficient number, since it is larger than the sum of its proper divisors (1).

16466669 is an equidigital number, since it uses as much as digits as its factorization.

16466669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 16466669 is about 4057.9143657795. The cubic root of 16466669 is about 254.4106291212.

The spelling of 16466669 in words is "sixteen million, four hundred sixty-six thousand, six hundred sixty-nine".