8160281064 has 128 divisors (see below), whose sum is σ = 24443328000. Its totient is φ = 2507542272.

The previous prime is 8160281023. The next prime is 8160281071. The reversal of 8160281064 is 4601820618.

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 31 ways as a sum of consecutive naturals, for example, 2916114 + ... + 2918910.

It is an arithmetic number, because the mean of its divisors is an integer number (190963500).

Almost surely, 2^8160281064 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 8160281064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12221664000).

8160281064 is an abundant number, since it is smaller than the sum of its proper divisors (16283046936).

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

8160281064 is a wasteful number, since it uses less digits than its factorization.

8160281064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 8160281064 is about 90334.2740270823. The cubic root of 8160281064 is about 2013.2685336755.

The spelling of 8160281064 in words is "eight billion, one hundred sixty million, two hundred eighty-one thousand, sixty-four".