20514400540305 has 64 divisors (see below), whose sum is σ = 39663434711040. Its totient is φ = 8844591419136.

The previous prime is 20514400540289. The next prime is 20514400540313. The reversal of 20514400540305 is 50304500441502.

It is not a de Polignac number, because 20514400540305 - 2⁴ = 20514400540289 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 22610962 + ... + 23500731.

It is an arithmetic number, because the mean of its divisors is an integer number (619741167360).

Almost surely, 2^{20514400540305} is an apocalyptic number.

It is an amenable number.

20514400540305 is a deficient number, since it is larger than the sum of its proper divisors (19149034170735).

20514400540305 is a wasteful number, since it uses less digits than its factorization.

20514400540305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46111950.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 20514400540305 its reverse (50304500441502), we get a palindrome (70818900981807).

The spelling of 20514400540305 in words is "twenty trillion, five hundred fourteen billion, four hundred million, five hundred forty thousand, three hundred five".