80540108800 has 144 divisors (see below), whose sum is σ = 201761812980. Its totient is φ = 31881953280.

The previous prime is 80540108783. The next prime is 80540108801. The reversal of 80540108800 is 880104508.

It can be written as a sum of positive squares in 6 ways, for example, as 39910450176 + 40629658624 = 199776^2 + 201568^2 .

It is not an unprimeable number, because it can be changed into a prime (80540108801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4958292 + ... + 4974508.

Almost surely, 2^80540108800 is an apocalyptic number.

80540108800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80540108800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100880906490).

80540108800 is an abundant number, since it is smaller than the sum of its proper divisors (121221704180).

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

80540108800 is a wasteful number, since it uses less digits than its factorization.

80540108800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16346 (or 16321 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The spelling of 80540108800 in words is "eighty billion, five hundred forty million, one hundred eight thousand, eight hundred".