80305536747680 has 192 divisors, whose sum is σ = 197468452274688. Its totient is φ = 30837115944960.

The previous prime is 80305536747641. The next prime is 80305536747691. The reversal of 80305536747680 is 8674763550308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1563525200 + ... + 1563576560.

It is an arithmetic number, because the mean of its divisors is an integer number (1028481522264).

Almost surely, 2^{80305536747680} is an apocalyptic number.

80305536747680 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 80305536747680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98734226137344).

80305536747680 is an abundant number, since it is smaller than the sum of its proper divisors (117162915527008).

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

80305536747680 is a wasteful number, since it uses less digits than its factorization.

80305536747680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55399 (or 55391 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 62.

The spelling of 80305536747680 in words is "eighty trillion, three hundred five billion, five hundred thirty-six million, seven hundred forty-seven thousand, six hundred eighty".