12016017667 has 2 divisors, whose sum is σ = 12016017668. Its totient is φ = 12016017666.

The previous prime is 12016017647. The next prime is 12016017679. The reversal of 12016017667 is 76671061021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12016017667 - 2¹¹ = 12016015619 is a prime.

It is a super-2 number, since 2×12016017667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12016017647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6008008833 + 6008008834.

It is an arithmetic number, because the mean of its divisors is an integer number (6008008834).

Almost surely, 2^12016017667 is an apocalyptic number.

12016017667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12016017667 is an equidigital number, since it uses as much as digits as its factorization.

12016017667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

Adding to 12016017667 its reverse (76671061021), we get a palindrome (88687078688).

The spelling of 12016017667 in words is "twelve billion, sixteen million, seventeen thousand, six hundred sixty-seven".