80918016 has 80 divisors (see below), whose sum is σ = 217694400. Its totient is φ = 26707968.

The previous prime is 80917961. The next prime is 80918021. The reversal of 80918016 is 61081908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213315 + ... + 213693.

It is an arithmetic number, because the mean of its divisors is an integer number (2721180).

Almost surely, 2^80918016 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 80918016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108847200).

80918016 is an abundant number, since it is smaller than the sum of its proper divisors (136776384).

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

80918016 is a wasteful number, since it uses less digits than its factorization.

80918016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 80918016 is about 8995.4441802504. Note that the first 3 decimals coincide. The cubic root of 80918016 is about 432.5288447912.

The spelling of 80918016 in words is "eighty million, nine hundred eighteen thousand, sixteen".