20559325458 has 64 divisors (see below), whose sum is σ = 47259475200. Its totient is φ = 5840854272.

The previous prime is 20559325417. The next prime is 20559325477. The reversal of 20559325458 is 85452395502.

It is a Curzon number.

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, 5817460 + ... + 5820992.

It is an arithmetic number, because the mean of its divisors is an integer number (738429300).

Almost surely, 2^20559325458 is an apocalyptic number.

20559325458 is an abundant number, since it is smaller than the sum of its proper divisors (26700149742).

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

20559325458 is a wasteful number, since it uses less digits than its factorization.

20559325458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4291.

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 20559325458 in words is "twenty billion, five hundred fifty-nine million, three hundred twenty-five thousand, four hundred fifty-eight".