80371644040000 has 140 divisors (see below), whose sum is σ = 199792592708148. Its totient is φ = 32068480000000.

The previous prime is 80371644039989. The next prime is 80371644040007. The reversal of 80371644040000 is 4044617308.

It can be written as a sum of positive squares in 10 ways, for example, as 37105348885056 + 43266295154944 = 6091416^2 + 6577712^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80371644040007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13534650 + ... + 18545350.

Almost surely, 2^{80371644040000} is an apocalyptic number.

80371644040000 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 80371644040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99896296354074).

80371644040000 is an abundant number, since it is smaller than the sum of its proper divisors (119420948668148).

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

80371644040000 is an equidigital number, since it uses as much as digits as its factorization.

80371644040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011134 (or 5011109 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 80371644040000 its reverse (4044617308), we get a palindrome (80375688657308).

The spelling of 80371644040000 in words is "eighty trillion, three hundred seventy-one billion, six hundred forty-four million, forty thousand".