80188216 has 8 divisors (see below), whose sum is σ = 150352920. Its totient is φ = 40094104.

The previous prime is 80188211. The next prime is 80188231. The reversal of 80188216 is 61288108.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80188211) 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 as a sum of consecutive naturals, namely, 5011756 + ... + 5011771.

It is an arithmetic number, because the mean of its divisors is an integer number (18794115).

Almost surely, 2^80188216 is an apocalyptic number.

It is an amenable number.

80188216 is a deficient number, since it is larger than the sum of its proper divisors (70164704).

80188216 is a wasteful number, since it uses less digits than its factorization.

80188216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023533 (or 10023529 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 80188216 is about 8954.7873229910. The cubic root of 80188216 is about 431.2245892470.

The spelling of 80188216 in words is "eighty million, one hundred eighty-eight thousand, two hundred sixteen".