82066234643 has 4 divisors (see below), whose sum is σ = 82491448488. Its totient is φ = 81641020800.

The previous prime is 82066234619. The next prime is 82066234687. The reversal of 82066234643 is 34643266028.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82066234643 - 2³² = 77771267347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82066234594 and 82066234603.

It is not an unprimeable number, because it can be changed into a prime (82066236643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212606633 + ... + 212607018.

It is an arithmetic number, because the mean of its divisors is an integer number (20622862122).

Almost surely, 2^82066234643 is an apocalyptic number.

82066234643 is a deficient number, since it is larger than the sum of its proper divisors (425213845).

82066234643 is a wasteful number, since it uses less digits than its factorization.

82066234643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425213844.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 82066234643 in words is "eighty-two billion, sixty-six million, two hundred thirty-four thousand, six hundred forty-three".