80506824520 has 64 divisors (see below), whose sum is σ = 195876506880. Its totient is φ = 29663579136.

The previous prime is 80506824421. The next prime is 80506824521. The reversal of 80506824520 is 2542860508.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (80506824521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227534 + ... + 1291453.

It is an arithmetic number, because the mean of its divisors is an integer number (3060570420).

Almost surely, 2^80506824520 is an apocalyptic number.

It is an amenable number.

80506824520 is an abundant number, since it is smaller than the sum of its proper divisors (115369682360).

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

80506824520 is a wasteful number, since it uses less digits than its factorization.

80506824520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519062 (or 2519058 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 80506824520 in words is "eighty billion, five hundred six million, eight hundred twenty-four thousand, five hundred twenty".