85646206173 has 64 divisors (see below), whose sum is σ = 129991606272. Its totient is φ = 49698593280.

The previous prime is 85646206127. The next prime is 85646206181. The reversal of 85646206173 is 37160264658.

It is not a de Polignac number, because 85646206173 - 2¹⁰ = 85646205149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85646206183) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54102940 + ... + 54104522.

It is an arithmetic number, because the mean of its divisors is an integer number (2031118848).

Almost surely, 2^85646206173 is an apocalyptic number.

It is an amenable number.

85646206173 is a deficient number, since it is larger than the sum of its proper divisors (44345400099).

85646206173 is a wasteful number, since it uses less digits than its factorization.

85646206173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 85646206173 in words is "eighty-five billion, six hundred forty-six million, two hundred six thousand, one hundred seventy-three".