85663016566775 has 12 divisors (see below), whose sum is σ = 106986328608600. Its totient is φ = 68037388694880.

The previous prime is 85663016566733. The next prime is 85663016566811. The reversal of 85663016566775 is 57766561036658.

It is not a de Polignac number, because 85663016566775 - 2¹⁶ = 85663016501239 is a prime.

It is a hoax number, since the sum of its digits (71) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 85663016566699 and 85663016566708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12325610420 + ... + 12325617369.

It is an arithmetic number, because the mean of its divisors is an integer number (8915527384050).

Almost surely, 2^{85663016566775} is an apocalyptic number.

85663016566775 is a deficient number, since it is larger than the sum of its proper divisors (21323312041825).

85663016566775 is a wasteful number, since it uses less digits than its factorization.

85663016566775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24651227938 (or 24651227933 counting only the distinct ones).

The product of its (nonzero) digits is 1143072000, while the sum is 71.

The spelling of 85663016566775 in words is "eighty-five trillion, six hundred sixty-three billion, sixteen million, five hundred sixty-six thousand, seven hundred seventy-five".