66831337319 has 2 divisors, whose sum is σ = 66831337320. Its totient is φ = 66831337318.

The previous prime is 66831337271. The next prime is 66831337361. The reversal of 66831337319 is 91373313866.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66831337319 - 2²⁸ = 66562901863 is a prime.

It is a super-2 number, since 2×66831337319² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66831337369) 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, 33415668659 + 33415668660.

It is an arithmetic number, because the mean of its divisors is an integer number (33415668660).

Almost surely, 2^66831337319 is an apocalyptic number.

66831337319 is a deficient number, since it is larger than the sum of its proper divisors (1).

66831337319 is an equidigital number, since it uses as much as digits as its factorization.

66831337319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 50.

The spelling of 66831337319 in words is "sixty-six billion, eight hundred thirty-one million, three hundred thirty-seven thousand, three hundred nineteen".