85858166647 has 16 divisors (see below), whose sum is σ = 99402200352. Its totient is φ = 73291806720.

The previous prime is 85858166623. The next prime is 85858166657. The reversal of 85858166647 is 74666185858.

It is not a de Polignac number, because 85858166647 - 2³⁵ = 51498428279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85858166657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449208 + ... + 611149.

It is an arithmetic number, because the mean of its divisors is an integer number (6212637522).

Almost surely, 2^85858166647 is an apocalyptic number.

85858166647 is a deficient number, since it is larger than the sum of its proper divisors (13544033705).

85858166647 is a wasteful number, since it uses less digits than its factorization.

85858166647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060818.

The product of its digits is 77414400, while the sum is 64.

The spelling of 85858166647 in words is "eighty-five billion, eight hundred fifty-eight million, one hundred sixty-six thousand, six hundred forty-seven".