666132123132767 has 2 divisors, whose sum is σ = 666132123132768. Its totient is φ = 666132123132766.

The previous prime is 666132123132701. The next prime is 666132123132769. The reversal of 666132123132767 is 767231321231666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 666132123132767 - 2¹² = 666132123128671 is a prime.

Together with 666132123132769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (666132123132769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333066061566383 + 333066061566384.

It is an arithmetic number, because the mean of its divisors is an integer number (333066061566384).

Almost surely, 2^{666132123132767} is an apocalyptic number.

666132123132767 is a deficient number, since it is larger than the sum of its proper divisors (1).

666132123132767 is an equidigital number, since it uses as much as digits as its factorization.

666132123132767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 56.

The spelling of 666132123132767 in words is "six hundred sixty-six trillion, one hundred thirty-two billion, one hundred twenty-three million, one hundred thirty-two thousand, seven hundred sixty-seven".