80683323840 has 336 divisors, whose sum is σ = 322366599360. Its totient is φ = 18139299840.

The previous prime is 80683323839. The next prime is 80683323913. The reversal of 80683323840 is 4832338608.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1196956 + ... + 1262564.

Almost surely, 2^80683323840 is an apocalyptic number.

80683323840 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 80683323840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161183299680).

80683323840 is an abundant number, since it is smaller than the sum of its proper divisors (241683275520).

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

80683323840 is a wasteful number, since it uses less digits than its factorization.

80683323840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65700 (or 65687 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 80683323840 in words is "eighty billion, six hundred eighty-three million, three hundred twenty-three thousand, eight hundred forty".