80236539960 has 128 divisors (see below), whose sum is σ = 249148872000. Its totient is φ = 20647079936.

The previous prime is 80236539937. The next prime is 80236539961. The reversal of 80236539960 is 6993563208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80236539961) 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 31 ways as a sum of consecutive naturals, for example, 7487086 + ... + 7497794.

Almost surely, 2^80236539960 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 80236539960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124574436000).

80236539960 is an abundant number, since it is smaller than the sum of its proper divisors (168912332040).

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

80236539960 is a wasteful number, since it uses less digits than its factorization.

80236539960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905 (or 12901 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The spelling of 80236539960 in words is "eighty billion, two hundred thirty-six million, five hundred thirty-nine thousand, nine hundred sixty".