20413554186 has 32 divisors (see below), whose sum is σ = 41206184640. Its totient is φ = 6741391104.

The previous prime is 20413554121. The next prime is 20413554193. The reversal of 20413554186 is 68145531402.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2041896 + ... + 2051868.

It is an arithmetic number, because the mean of its divisors is an integer number (1287693270).

Almost surely, 2^20413554186 is an apocalyptic number.

20413554186 is an abundant number, since it is smaller than the sum of its proper divisors (20792630454).

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

20413554186 is a wasteful number, since it uses less digits than its factorization.

20413554186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13110.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 20413554186 in words is "twenty billion, four hundred thirteen million, five hundred fifty-four thousand, one hundred eighty-six".