667376531266463 has 2 divisors, whose sum is σ = 667376531266464. Its totient is φ = 667376531266462.

The previous prime is 667376531266457. The next prime is 667376531266477. The reversal of 667376531266463 is 364662135673766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667376531266463 - 2⁴² = 662978484755359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667376531266663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333688265633231 + 333688265633232.

It is an arithmetic number, because the mean of its divisors is an integer number (333688265633232).

Almost surely, 2^{667376531266463} is an apocalyptic number.

667376531266463 is a deficient number, since it is larger than the sum of its proper divisors (1).

667376531266463 is an equidigital number, since it uses as much as digits as its factorization.

667376531266463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469035520, while the sum is 71.

The spelling of 667376531266463 in words is "six hundred sixty-seven trillion, three hundred seventy-six billion, five hundred thirty-one million, two hundred sixty-six thousand, four hundred sixty-three".