20060505218358 has 128 divisors (see below), whose sum is σ = 49725256089600. Its totient is φ = 5943719152800.

The previous prime is 20060505218287. The next prime is 20060505218371. The reversal of 20060505218358 is 85381250506002.

20060505218358 is a `hidden beast` number, since 2 + 0 + 0 + 60 + 505 + 2 + 1 + 83 + 5 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2758173 + ... + 6908583.

It is an arithmetic number, because the mean of its divisors is an integer number (388478563200).

Almost surely, 2^{20060505218358} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20060505218358, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24862628044800).

20060505218358 is an abundant number, since it is smaller than the sum of its proper divisors (29664750871242).

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

20060505218358 is a wasteful number, since it uses less digits than its factorization.

20060505218358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150615 (or 4150609 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 20060505218358 in words is "twenty trillion, sixty billion, five hundred five million, two hundred eighteen thousand, three hundred fifty-eight".