80188091600 has 30 divisors (see below), whose sum is σ = 192651891030. Its totient is φ = 32075236480.

The previous prime is 80188091597. The next prime is 80188091609. The reversal of 80188091600 is 619088108.

It can be written as a sum of positive squares in 3 ways, for example, as 442849936 + 79745241664 = 21044^2 + 282392^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80188091609) 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 5 ways as a sum of consecutive naturals, for example, 100234715 + ... + 100235514.

It is an arithmetic number, because the mean of its divisors is an integer number (6421729701).

Almost surely, 2^80188091600 is an apocalyptic number.

80188091600 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80188091600 is an abundant number, since it is smaller than the sum of its proper divisors (112463799430).

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

80188091600 is a wasteful number, since it uses less digits than its factorization.

80188091600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200470247 (or 200470236 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 41.

The spelling of 80188091600 in words is "eighty billion, one hundred eighty-eight million, ninety-one thousand, six hundred".