82664618327 has 2 divisors, whose sum is σ = 82664618328. Its totient is φ = 82664618326.

The previous prime is 82664618293. The next prime is 82664618381. The reversal of 82664618327 is 72381646628.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82664618327 - 2¹⁶ = 82664552791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82664618627) 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, 41332309163 + 41332309164.

It is an arithmetic number, because the mean of its divisors is an integer number (41332309164).

Almost surely, 2^82664618327 is an apocalyptic number.

82664618327 is a deficient number, since it is larger than the sum of its proper divisors (1).

82664618327 is an equidigital number, since it uses as much as digits as its factorization.

82664618327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4644864, while the sum is 53.

The spelling of 82664618327 in words is "eighty-two billion, six hundred sixty-four million, six hundred eighteen thousand, three hundred twenty-seven".