80716512 has 96 divisors (see below), whose sum is σ = 222566400. Its totient is φ = 25579008.

The previous prime is 80716511. The next prime is 80716523. The reversal of 80716512 is 21561708.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×80716512² = 13030310618892288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80716512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80716511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219753 + ... + 220119.

It is an arithmetic number, because the mean of its divisors is an integer number (2318400).

Almost surely, 2^80716512 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 80716512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111283200).

80716512 is an abundant number, since it is smaller than the sum of its proper divisors (141849888).

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

80716512 is a wasteful number, since it uses less digits than its factorization.

80716512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 80716512 is about 8984.2368624163. The cubic root of 80716512 is about 432.1695150929.

The spelling of 80716512 in words is "eighty million, seven hundred sixteen thousand, five hundred twelve".