80516825280 has 784 divisors, whose sum is σ = 309426376320. Its totient is φ = 19874709504.

The previous prime is 80516825273. The next prime is 80516825381. The reversal of 80516825280 is 8252861508.

80516825280 is a `hidden beast` number, since 8 + 0 + 516 + 8 + 2 + 52 + 80 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 313294912 + ... + 313295168.

Almost surely, 2^80516825280 is an apocalyptic number.

80516825280 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 80516825280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154713188160).

80516825280 is an abundant number, since it is smaller than the sum of its proper divisors (228909551040).

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

80516825280 is a wasteful number, since it uses less digits than its factorization.

80516825280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 80516825280 in words is "eighty billion, five hundred sixteen million, eight hundred twenty-five thousand, two hundred eighty".