20054420209999 has 8 divisors (see below), whose sum is σ = 23538778934048. Its totient is φ = 16724921873760.

The previous prime is 20054420209949. The next prime is 20054420210023. The reversal of 20054420209999 is 99990202445002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20054420209999 - 2⁷ = 20054420209871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054420209909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38715096672 + ... + 38715097189.

It is an arithmetic number, because the mean of its divisors is an integer number (2942347366756).

Almost surely, 2^{20054420209999} is an apocalyptic number.

20054420209999 is a deficient number, since it is larger than the sum of its proper divisors (3484358724049).

20054420209999 is an equidigital number, since it uses as much as digits as its factorization.

20054420209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77430193905.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 20054420209999 in words is "twenty trillion, fifty-four billion, four hundred twenty million, two hundred nine thousand, nine hundred ninety-nine".