8171228160 has 880 divisors, whose sum is σ = 33170243040. Its totient is φ = 1911029760.

The previous prime is 8171228129. The next prime is 8171228173. The reversal of 8171228160 is 618221718.

It is a super-3 number, since 3×8171228160³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 133954530 + ... + 133954590.

It is an arithmetic number, because the mean of its divisors is an integer number (37693458).

Almost surely, 2^8171228160 is an apocalyptic number.

8171228160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8171228160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16585121520).

8171228160 is an abundant number, since it is smaller than the sum of its proper divisors (24999014880).

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

8171228160 is a wasteful number, since it uses less digits than its factorization.

8171228160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 8171228160 is about 90394.8458707685. The cubic root of 8171228160 is about 2014.1684044725.

Adding to 8171228160 its reverse (618221718), we get a palindrome (8789449878).

The spelling of 8171228160 in words is "eight billion, one hundred seventy-one million, two hundred twenty-eight thousand, one hundred sixty".