80816188 has 6 divisors (see below), whose sum is σ = 141428336. Its totient is φ = 40408092.

The previous prime is 80816167. The next prime is 80816191. The reversal of 80816188 is 88161808.

It is a self number, because there is not a number n which added to its sum of digits gives 80816188.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10102020 + ... + 10102027.

Almost surely, 2^80816188 is an apocalyptic number.

It is an amenable number.

80816188 is a deficient number, since it is larger than the sum of its proper divisors (60612148).

80816188 is a wasteful number, since it uses less digits than its factorization.

80816188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20204051 (or 20204049 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 40.

The square root of 80816188 is about 8989.7824222836. The cubic root of 80816188 is about 432.3473358300.

The spelling of 80816188 in words is "eighty million, eight hundred sixteen thousand, one hundred eighty-eight".