80543803560 has 128 divisors (see below), whose sum is σ = 265367664000. Its totient is φ = 19394677760.

The previous prime is 80543803559. The next prime is 80543803577. The reversal of 80543803560 is 6530834508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8079 + ... + 401438.

It is an arithmetic number, because the mean of its divisors is an integer number (2073184875).

Almost surely, 2^80543803560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80543803560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132683832000).

80543803560 is an abundant number, since it is smaller than the sum of its proper divisors (184823860440).

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

80543803560 is a wasteful number, since it uses less digits than its factorization.

80543803560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409691 (or 409687 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 80543803560 in words is "eighty billion, five hundred forty-three million, eight hundred three thousand, five hundred sixty".