12667607161 has 4 divisors (see below), whose sum is σ = 13819207824. Its totient is φ = 11516006500.

The previous prime is 12667607149. The next prime is 12667607201. The reversal of 12667607161 is 16170676621.

12667607161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12667607161 - 2⁵ = 12667607129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12667602161) 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 in 3 ways as a sum of consecutive naturals, for example, 575800315 + ... + 575800336.

It is an arithmetic number, because the mean of its divisors is an integer number (3454801956).

Almost surely, 2^12667607161 is an apocalyptic number.

12667607161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12667607161 is a deficient number, since it is larger than the sum of its proper divisors (1151600663).

12667607161 is a wasteful number, since it uses less digits than its factorization.

12667607161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151600662.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 12667607161 in words is "twelve billion, six hundred sixty-seven million, six hundred seven thousand, one hundred sixty-one".