82221418567 has 2 divisors, whose sum is σ = 82221418568. Its totient is φ = 82221418566.

The previous prime is 82221418529. The next prime is 82221418589. The reversal of 82221418567 is 76581412228.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82221418567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82221418067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41110709283 + 41110709284.

It is an arithmetic number, because the mean of its divisors is an integer number (41110709284).

Almost surely, 2^82221418567 is an apocalyptic number.

82221418567 is a deficient number, since it is larger than the sum of its proper divisors (1).

82221418567 is an equidigital number, since it uses as much as digits as its factorization.

82221418567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 46.

The spelling of 82221418567 in words is "eighty-two billion, two hundred twenty-one million, four hundred eighteen thousand, five hundred sixty-seven".