12601667171 has 2 divisors, whose sum is σ = 12601667172. Its totient is φ = 12601667170.

The previous prime is 12601667093. The next prime is 12601667173. The reversal of 12601667171 is 17176610621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12601667171 is a prime.

Together with 12601667173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12601667173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6300833585 + 6300833586.

It is an arithmetic number, because the mean of its divisors is an integer number (6300833586).

Almost surely, 2^12601667171 is an apocalyptic number.

12601667171 is a deficient number, since it is larger than the sum of its proper divisors (1).

12601667171 is an equidigital number, since it uses as much as digits as its factorization.

12601667171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 12601667171 in words is "twelve billion, six hundred one million, six hundred sixty-seven thousand, one hundred seventy-one".