80185216 has 32 divisors (see below), whose sum is σ = 164071080. Its totient is φ = 39006720.

The previous prime is 80185211. The next prime is 80185219. The reversal of 80185216 is 61258108.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80185211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3730 + ... + 13201.

Almost surely, 2^80185216 is an apocalyptic number.

It is an amenable number.

80185216 is an abundant number, since it is smaller than the sum of its proper divisors (83885864).

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

80185216 is a wasteful number, since it uses less digits than its factorization.

80185216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982 (or 16970 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 80185216 is about 8954.6198132584. The cubic root of 80185216 is about 431.2192115246.

The spelling of 80185216 in words is "eighty million, one hundred eighty-five thousand, two hundred sixteen".