8166547875 has 16 divisors (see below), whose sum is σ = 13589136288. Its totient is φ = 4355492000.

The previous prime is 8166547847. The next prime is 8166547889. The reversal of 8166547875 is 5787456618.

It is a happy number.

It is not a de Polignac number, because 8166547875 - 2⁵ = 8166547843 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10888356 + ... + 10889105.

It is an arithmetic number, because the mean of its divisors is an integer number (849321018).

Almost surely, 2^8166547875 is an apocalyptic number.

8166547875 is a deficient number, since it is larger than the sum of its proper divisors (5422588413).

8166547875 is a wasteful number, since it uses less digits than its factorization.

8166547875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21777479 (or 21777469 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The square root of 8166547875 is about 90368.9541546210. The cubic root of 8166547875 is about 2013.7837751206.

The spelling of 8166547875 in words is "eight billion, one hundred sixty-six million, five hundred forty-seven thousand, eight hundred seventy-five".