85017666676 has 12 divisors (see below), whose sum is σ = 150253995780. Its totient is φ = 42087953600.

The previous prime is 85017666661. The next prime is 85017666709. The reversal of 85017666676 is 67666671058.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75337074576 + 9680592100 = 274476^2 + 98390^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85017666676.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105219481 + ... + 105220288.

It is an arithmetic number, because the mean of its divisors is an integer number (12521166315).

Almost surely, 2^85017666676 is an apocalyptic number.

It is an amenable number.

85017666676 is a deficient number, since it is larger than the sum of its proper divisors (65236329104).

85017666676 is a wasteful number, since it uses less digits than its factorization.

85017666676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210439874 (or 210439872 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 85017666676 in words is "eighty-five billion, seventeen million, six hundred sixty-six thousand, six hundred seventy-six".