518353702220 has 24 divisors (see below), whose sum is σ = 1088709163584. Its totient is φ = 207309787776.

The previous prime is 518353702211. The next prime is 518353702337. The reversal of 518353702220 is 22207353815.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1846484 + ... + 2108603.

It is an arithmetic number, because the mean of its divisors is an integer number (45362881816).

Almost surely, 2^518353702220 is an apocalyptic number.

It is an amenable number.

518353702220 is an abundant number, since it is smaller than the sum of its proper divisors (570355461364).

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

518353702220 is a wasteful number, since it uses less digits than its factorization.

518353702220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961649 (or 3961647 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 518353702220 in words is "five hundred eighteen billion, three hundred fifty-three million, seven hundred two thousand, two hundred twenty".