82665155881773 has 12 divisors (see below), whose sum is σ = 124596756691680. Its totient is φ = 52714012446216.

The previous prime is 82665155881757. The next prime is 82665155881787. The reversal of 82665155881773 is 37718855156628.

82665155881773 is a `hidden beast` number, since 8 + 2 + 6 + 6 + 51 + 558 + 8 + 17 + 7 + 3 = 666.

It is not a de Polignac number, because 82665155881773 - 2⁴ = 82665155881757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82665155801773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199674289363 + ... + 199674289776.

It is an arithmetic number, because the mean of its divisors is an integer number (10383063057640).

Almost surely, 2^{82665155881773} is an apocalyptic number.

It is an amenable number.

82665155881773 is a deficient number, since it is larger than the sum of its proper divisors (41931600809907).

82665155881773 is a wasteful number, since it uses less digits than its factorization.

82665155881773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399348579168 (or 399348579165 counting only the distinct ones).

The product of its digits is 677376000, while the sum is 72.

The spelling of 82665155881773 in words is "eighty-two trillion, six hundred sixty-five billion, one hundred fifty-five million, eight hundred eighty-one thousand, seven hundred seventy-three".