12099505667 has 2 divisors, whose sum is σ = 12099505668. Its totient is φ = 12099505666.

The previous prime is 12099505661. The next prime is 12099505673. The reversal of 12099505667 is 76650599021.

It is a happy number.

12099505667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12099505661) and next prime (12099505673).

It is a cyclic number.

It is not a de Polignac number, because 12099505667 - 2¹⁶ = 12099440131 is a prime.

It is a super-2 number, since 2×12099505667² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12099505661) 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, 6049752833 + 6049752834.

It is an arithmetic number, because the mean of its divisors is an integer number (6049752834).

Almost surely, 2^12099505667 is an apocalyptic number.

12099505667 is a deficient number, since it is larger than the sum of its proper divisors (1).

12099505667 is an equidigital number, since it uses as much as digits as its factorization.

12099505667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 12099505667 in words is "twelve billion, ninety-nine million, five hundred five thousand, six hundred sixty-seven".