11671371667 has 2 divisors, whose sum is σ = 11671371668. Its totient is φ = 11671371666.

The previous prime is 11671371653. The next prime is 11671371713. The reversal of 11671371667 is 76617317611.

It is an a-pointer prime, because the next prime (11671371713) can be obtained adding 11671371667 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11671371667 is a prime.

It is not a weakly prime, because it can be changed into another prime (11671377667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5835685833 + 5835685834.

It is an arithmetic number, because the mean of its divisors is an integer number (5835685834).

Almost surely, 2^11671371667 is an apocalyptic number.

11671371667 is a deficient number, since it is larger than the sum of its proper divisors (1).

11671371667 is an equidigital number, since it uses as much as digits as its factorization.

11671371667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 222264, while the sum is 46.

The spelling of 11671371667 in words is "eleven billion, six hundred seventy-one million, three hundred seventy-one thousand, six hundred sixty-seven".