80120016 has 70 divisors (see below), whose sum is σ = 232776210. Its totient is φ = 26702784.

The previous prime is 80119999. The next prime is 80120071. The reversal of 80120016 is 61002108.

It can be written as a sum of positive squares in only one way, i.e., 44836416 + 35283600 = 6696^2 + 5940^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 8230 + ... + 15098.

Almost surely, 2^80120016 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 80120016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116388105).

80120016 is an abundant number, since it is smaller than the sum of its proper divisors (152656194).

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

80120016 is an equidigital number, since it uses as much as digits as its factorization.

80120016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895 (or 6874 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 80120016 is about 8950.9784939972. The cubic root of 80120016 is about 431.1023025404.

The spelling of 80120016 in words is "eighty million, one hundred twenty thousand, sixteen".