82665438768106 has 128 divisors (see below), whose sum is σ = 132635670773760. Its totient is φ = 38580026284800.

The previous prime is 82665438768097. The next prime is 82665438768163. The reversal of 82665438768106 is 60186783456628.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55742034841 + ... + 55742036323.

It is an arithmetic number, because the mean of its divisors is an integer number (1036216177920).

Almost surely, 2^{82665438768106} is an apocalyptic number.

82665438768106 is a deficient number, since it is larger than the sum of its proper divisors (49970232005654).

82665438768106 is a wasteful number, since it uses less digits than its factorization.

82665438768106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780.

The product of its (nonzero) digits is 557383680, while the sum is 70.

The spelling of 82665438768106 in words is "eighty-two trillion, six hundred sixty-five billion, four hundred thirty-eight million, seven hundred sixty-eight thousand, one hundred six".