20550311414411 has 4 divisors (see below), whose sum is σ = 20626706624400. Its totient is φ = 20473916204424.

The previous prime is 20550311414393. The next prime is 20550311414537. The reversal of 20550311414411 is 11441411305502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20550311414411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20550311414911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38197604591 + ... + 38197605128.

It is an arithmetic number, because the mean of its divisors is an integer number (5156676656100).

Almost surely, 2^{20550311414411} is an apocalyptic number.

20550311414411 is a deficient number, since it is larger than the sum of its proper divisors (76395209989).

20550311414411 is an equidigital number, since it uses as much as digits as its factorization.

20550311414411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76395209988.

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 20550311414411 its reverse (11441411305502), we get a palindrome (31991722719913).

The spelling of 20550311414411 in words is "twenty trillion, five hundred fifty billion, three hundred eleven million, four hundred fourteen thousand, four hundred eleven".