8158321080 has 1024 divisors, whose sum is σ = 37449216000. Its totient is φ = 1528823808.

The previous prime is 8158321069. The next prime is 8158321133. The reversal of 8158321080 is 801238518.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 31744312 + ... + 31744568.

It is an arithmetic number, because the mean of its divisors is an integer number (36571500).

Almost surely, 2^8158321080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8158321080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18724608000).

8158321080 is an abundant number, since it is smaller than the sum of its proper divisors (29290894920).

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

8158321080 is a wasteful number, since it uses less digits than its factorization.

8158321080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 8158321080 is about 90323.4248686353. The cubic root of 8158321080 is about 2013.1073345678.

Adding to 8158321080 its reverse (801238518), we get a palindrome (8959559598).

The spelling of 8158321080 in words is "eight billion, one hundred fifty-eight million, three hundred twenty-one thousand, eighty".