82885705556085 has 48 divisors (see below), whose sum is σ = 144236827753200. Its totient is φ = 44030934807552.

The previous prime is 82885705556057. The next prime is 82885705556107. The reversal of 82885705556085 is 58065550758828.

82885705556085 is a `hidden beast` number, since 8 + 2 + 8 + 8 + 5 + 7 + 0 + 5 + 5 + 5 + 608 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1435640105124 + 81450065450961 = 1198182^2 + 9024969^2 .

It is not a de Polignac number, because 82885705556085 - 2⁵ = 82885705556053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 50382489 + ... + 52001601.

It is an arithmetic number, because the mean of its divisors is an integer number (3004933911525).

Almost surely, 2^{82885705556085} is an apocalyptic number.

It is an amenable number.

82885705556085 is a deficient number, since it is larger than the sum of its proper divisors (61351122197115).

82885705556085 is a wasteful number, since it uses less digits than its factorization.

82885705556085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623622 (or 1623619 counting only the distinct ones).

The product of its (nonzero) digits is 1075200000, while the sum is 72.

The spelling of 82885705556085 in words is "eighty-two trillion, eight hundred eighty-five billion, seven hundred five million, five hundred fifty-six thousand, eighty-five".