82665178763211 has 24 divisors (see below), whose sum is σ = 134462226263040. Its totient is φ = 48483975812400.

The previous prime is 82665178763191. The next prime is 82665178763243. The reversal of 82665178763211 is 11236787156628.

It is a happy number.

82665178763211 is a `hidden beast` number, since 8 + 2 + 6 + 6 + 517 + 8 + 76 + 32 + 11 = 666.

It is not a de Polignac number, because 82665178763211 - 2⁶ = 82665178763147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82665178763291) 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 23 ways as a sum of consecutive naturals, for example, 13467767991 + ... + 13467774128.

It is an arithmetic number, because the mean of its divisors is an integer number (5602592760960).

Almost surely, 2^{82665178763211} is an apocalyptic number.

82665178763211 is a deficient number, since it is larger than the sum of its proper divisors (51797047499829).

82665178763211 is a wasteful number, since it uses less digits than its factorization.

82665178763211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26935542167 (or 26935542164 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 82665178763211 in words is "eighty-two trillion, six hundred sixty-five billion, one hundred seventy-eight million, seven hundred sixty-three thousand, two hundred eleven".