66467131859 has 2 divisors, whose sum is σ = 66467131860. Its totient is φ = 66467131858.

The previous prime is 66467131789. The next prime is 66467131883. The reversal of 66467131859 is 95813176466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66467131859 - 2⁸ = 66467131603 is a prime.

It is not a weakly prime, because it can be changed into another prime (66467131889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33233565929 + 33233565930.

It is an arithmetic number, because the mean of its divisors is an integer number (33233565930).

Almost surely, 2^66467131859 is an apocalyptic number.

66467131859 is a deficient number, since it is larger than the sum of its proper divisors (1).

66467131859 is an equidigital number, since it uses as much as digits as its factorization.

66467131859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The spelling of 66467131859 in words is "sixty-six billion, four hundred sixty-seven million, one hundred thirty-one thousand, eight hundred fifty-nine".