80188090668 has 60 divisors (see below), whose sum is σ = 239574302352. Its totient is φ = 22910882400.

The previous prime is 80188090663. The next prime is 80188090699. The reversal of 80188090668 is 86609088108.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (80188090663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17675883 + ... + 17680418.

Almost surely, 2^80188090668 is an apocalyptic number.

It is an amenable number.

80188090668 is an abundant number, since it is smaller than the sum of its proper divisors (159386211684).

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

80188090668 is a wasteful number, since it uses less digits than its factorization.

80188090668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35356324 (or 35356313 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 80188090668 in words is "eighty billion, one hundred eighty-eight million, ninety thousand, six hundred sixty-eight".