8191285160 has 32 divisors (see below), whose sum is σ = 18435067560. Its totient is φ = 3275682816.

The previous prime is 8191285127. The next prime is 8191285171. The reversal of 8191285160 is 615821918.

It can be written as a sum of positive squares in 4 ways, for example, as 7416998884 + 774286276 = 86122^2 + 27826^2 .

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 7 ways as a sum of consecutive naturals, for example, 148052 + ... + 195708.

Almost surely, 2^8191285160 is an apocalyptic number.

It is an amenable number.

8191285160 is an abundant number, since it is smaller than the sum of its proper divisors (10243782400).

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

8191285160 is a wasteful number, since it uses less digits than its factorization.

8191285160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51965 (or 51961 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 8191285160 is about 90505.7189353247. The cubic root of 8191285160 is about 2015.8150425817.

The spelling of 8191285160 in words is "eight billion, one hundred ninety-one million, two hundred eighty-five thousand, one hundred sixty".