8171644116 has 48 divisors (see below), whose sum is σ = 20198795904. Its totient is φ = 2562379776.

The previous prime is 8171644111. The next prime is 8171644147. The reversal of 8171644116 is 6114461718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8171644111) 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, 454881 + ... + 472503.

It is an arithmetic number, because the mean of its divisors is an integer number (420808248).

Almost surely, 2^8171644116 is an apocalyptic number.

It is an amenable number.

8171644116 is an abundant number, since it is smaller than the sum of its proper divisors (12027151788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8171644116 is a wasteful number, since it uses less digits than its factorization.

8171644116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19920 (or 19918 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 8171644116 is about 90397.1466142599. The cubic root of 8171644116 is about 2014.2025809431.

The spelling of 8171644116 in words is "eight billion, one hundred seventy-one million, six hundred forty-four thousand, one hundred sixteen".