80646016 has 96 divisors (see below), whose sum is σ = 182327040. Its totient is φ = 35481600.

The previous prime is 80645969. The next prime is 80646017. The reversal of 80646016 is 61064608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80646017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634945 + ... + 635071.

It is an arithmetic number, because the mean of its divisors is an integer number (1899240).

Almost surely, 2^80646016 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 80646016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91163520).

80646016 is an abundant number, since it is smaller than the sum of its proper divisors (101681024).

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

80646016 is a wasteful number, since it uses less digits than its factorization.

80646016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 80646016 is about 8980.3126894335. The cubic root of 80646016 is about 432.0436627107.

The spelling of 80646016 in words is "eighty million, six hundred forty-six thousand, sixteen".