80722082616 has 128 divisors (see below), whose sum is σ = 243018124800. Its totient is φ = 21827543040.

The previous prime is 80722082543. The next prime is 80722082629. The reversal of 80722082616 is 61628022708.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3285096 + ... + 3309576.

It is an arithmetic number, because the mean of its divisors is an integer number (1898579100).

Almost surely, 2^80722082616 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 80722082616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121509062400).

80722082616 is an abundant number, since it is smaller than the sum of its proper divisors (162296042184).

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

80722082616 is a wasteful number, since it uses less digits than its factorization.

80722082616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25549 (or 25545 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 80722082616 in words is "eighty billion, seven hundred twenty-two million, eighty-two thousand, six hundred sixteen".