80189890168 has 8 divisors (see below), whose sum is σ = 150356044080. Its totient is φ = 40094945080.

The previous prime is 80189890159. The next prime is 80189890199. The reversal of 80189890168 is 86109898108.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011868128 + ... + 5011868143.

It is an arithmetic number, because the mean of its divisors is an integer number (18794505510).

Almost surely, 2^80189890168 is an apocalyptic number.

It is an amenable number.

80189890168 is a deficient number, since it is larger than the sum of its proper divisors (70166153912).

80189890168 is a wasteful number, since it uses less digits than its factorization.

80189890168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10023736277 (or 10023736273 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 58.

The spelling of 80189890168 in words is "eighty billion, one hundred eighty-nine million, eight hundred ninety thousand, one hundred sixty-eight".