20572886404206 has 24 divisors (see below), whose sum is σ = 46512612740880. Its totient is φ = 6559471027296.

The previous prime is 20572886404193. The next prime is 20572886404207. The reversal of 20572886404206 is 60240468827502.

20572886404206 is a `hidden beast` number, since 2 + 0 + 5 + 7 + 28 + 8 + 6 + 404 + 206 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20572886404207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24846480751 + ... + 24846481578.

It is an arithmetic number, because the mean of its divisors is an integer number (1938025530870).

Almost surely, 2^{20572886404206} is an apocalyptic number.

20572886404206 is an abundant number, since it is smaller than the sum of its proper divisors (25939726336674).

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

20572886404206 is a wasteful number, since it uses less digits than its factorization.

20572886404206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49692962360 (or 49692962357 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 54.

The spelling of 20572886404206 in words is "twenty trillion, five hundred seventy-two billion, eight hundred eighty-six million, four hundred four thousand, two hundred six".