16671311 has 2 divisors, whose sum is σ = 16671312. Its totient is φ = 16671310.

The previous prime is 16671301. The next prime is 16671329. The reversal of 16671311 is 11317661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16671311 - 2²² = 12477007 is a prime.

It is a super-2 number, since 2×16671311² = 555865220917442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16671301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8335655 + 8335656.

It is an arithmetic number, because the mean of its divisors is an integer number (8335656).

Almost surely, 2^16671311 is an apocalyptic number.

16671311 is a deficient number, since it is larger than the sum of its proper divisors (1).

16671311 is an equidigital number, since it uses as much as digits as its factorization.

16671311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

The square root of 16671311 is about 4083.0516773609. The cubic root of 16671311 is about 255.4602019039.

Adding to 16671311 its reverse (11317661), we get a palindrome (27988972).

The spelling of 16671311 in words is "sixteen million, six hundred seventy-one thousand, three hundred eleven".