82665210768189 has 48 divisors (see below), whose sum is σ = 127413260513280. Its totient is φ = 46700651479680.

The previous prime is 82665210768143. The next prime is 82665210768197. The reversal of 82665210768189 is 98186701256628.

It is not a de Polignac number, because 82665210768189 - 2⁸ = 82665210767933 is a prime.

It is a super-2 number, since 2×82665210768189² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82665210768109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1562081872 + ... + 1562134790.

It is an arithmetic number, because the mean of its divisors is an integer number (2654442927360).

Almost surely, 2^{82665210768189} is an apocalyptic number.

82665210768189 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

82665210768189 is a deficient number, since it is larger than the sum of its proper divisors (44748049745091).

82665210768189 is an equidigital number, since it uses as much as digits as its factorization.

82665210768189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62498 (or 62409 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 69.

The spelling of 82665210768189 in words is "eighty-two trillion, six hundred sixty-five billion, two hundred ten million, seven hundred sixty-eight thousand, one hundred eighty-nine".