20060505218205 has 24 divisors (see below), whose sum is σ = 35893205038080. Its totient is φ = 10353809144160.

The previous prime is 20060505218197. The next prime is 20060505218209. The reversal of 20060505218205 is 50281250506002.

It is a happy number.

20060505218205 is a `hidden beast` number, since 2 + 0 + 0 + 6 + 0 + 50 + 521 + 82 + 0 + 5 = 666.

It is not a de Polignac number, because 20060505218205 - 2³ = 20060505218197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20060505218205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20060505218209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7190143845 + ... + 7190146634.

It is an arithmetic number, because the mean of its divisors is an integer number (1495550209920).

Almost surely, 2^{20060505218205} is an apocalyptic number.

It is an amenable number.

20060505218205 is a deficient number, since it is larger than the sum of its proper divisors (15832699819875).

20060505218205 is a wasteful number, since it uses less digits than its factorization.

20060505218205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14380290521 (or 14380290518 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 20060505218205 in words is "twenty trillion, sixty billion, five hundred five million, two hundred eighteen thousand, two hundred five".