80727352560 has 120 divisors (see below), whose sum is σ = 271662706224. Its totient is φ = 21483356160.

The previous prime is 80727352529. The next prime is 80727352561. The reversal of 80727352560 is 6525372708.

80727352560 is a `hidden beast` number, since 80 + 7 + 2 + 7 + 3 + 5 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 (80727352561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 239344 + ... + 467696.

Almost surely, 2^80727352560 is an apocalyptic number.

80727352560 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 80727352560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135831353112).

80727352560 is an abundant number, since it is smaller than the sum of its proper divisors (190935353664).

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

80727352560 is a wasteful number, since it uses less digits than its factorization.

80727352560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228863 (or 228854 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 80727352560 in words is "eighty billion, seven hundred twenty-seven million, three hundred fifty-two thousand, five hundred sixty".