80065128 has 128 divisors (see below), whose sum is σ = 241315200. Its totient is φ = 21811200.

The previous prime is 80065109. The next prime is 80065177. The reversal of 80065128 is 82156008.

It is a junction number, because it is equal to n+sod(n) for n = 80065095 and 80065104.

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, 140428 + ... + 140996.

It is an arithmetic number, because the mean of its divisors is an integer number (1885275).

Almost surely, 2^80065128 is an apocalyptic number.

80065128 is a gapful number since it is divisible by the number (88) 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 80065128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120657600).

80065128 is an abundant number, since it is smaller than the sum of its proper divisors (161250072).

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

80065128 is a wasteful number, since it uses less digits than its factorization.

80065128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 80065128 is about 8947.9119351947. The cubic root of 80065128 is about 431.0038346423.

The spelling of 80065128 in words is "eighty million, sixty-five thousand, one hundred twenty-eight".