80834534550 has 384 divisors, whose sum is σ = 285226030080. Its totient is φ = 16342041600.

The previous prime is 80834534531. The next prime is 80834534551. The reversal of 80834534550 is 5543543808.

80834534550 is a `hidden beast` number, since 80 + 8 + 34 + 534 + 5 + 5 + 0 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80834534496 and 80834534505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80834534551) 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 191 ways as a sum of consecutive naturals, for example, 3835642 + ... + 3856658.

It is an arithmetic number, because the mean of its divisors is an integer number (742776120).

Almost surely, 2^80834534550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80834534550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142613015040).

80834534550 is an abundant number, since it is smaller than the sum of its proper divisors (204391495530).

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

80834534550 is a wasteful number, since it uses less digits than its factorization.

80834534550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21093 (or 21082 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 80834534550 in words is "eighty billion, eight hundred thirty-four million, five hundred thirty-four thousand, five hundred fifty".