80809554420 has 360 divisors, whose sum is σ = 304412613120. Its totient is φ = 17874380160.

The previous prime is 80809554367. The next prime is 80809554421. The reversal of 80809554420 is 2445590808.

80809554420 is a `hidden beast` number, since 8 + 0 + 80 + 9 + 5 + 544 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80809554421) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2444361 + ... + 2477199.

It is an arithmetic number, because the mean of its divisors is an integer number (845590592).

Almost surely, 2^80809554420 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 80809554420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152206306560).

80809554420 is an abundant number, since it is smaller than the sum of its proper divisors (223603058700).

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

80809554420 is a wasteful number, since it uses less digits than its factorization.

80809554420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32905 (or 32887 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 80809554420 in words is "eighty billion, eight hundred nine million, five hundred fifty-four thousand, four hundred twenty".