82416180643 has 2 divisors, whose sum is σ = 82416180644. Its totient is φ = 82416180642.

The previous prime is 82416180619. The next prime is 82416180703. The reversal of 82416180643 is 34608161428.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82416180643 - 2⁵ = 82416180611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82416180643.

It is not a weakly prime, because it can be changed into another prime (82416160643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41208090321 + 41208090322.

It is an arithmetic number, because the mean of its divisors is an integer number (41208090322).

Almost surely, 2^82416180643 is an apocalyptic number.

82416180643 is a deficient number, since it is larger than the sum of its proper divisors (1).

82416180643 is an equidigital number, since it uses as much as digits as its factorization.

82416180643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 82416180643 in words is "eighty-two billion, four hundred sixteen million, one hundred eighty thousand, six hundred forty-three".