20013653450227 has 4 divisors (see below), whose sum is σ = 20018775965896. Its totient is φ = 20008530934560.

The previous prime is 20013653450221. The next prime is 20013653450237. The reversal of 20013653450227 is 72205435631002.

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

It is a cyclic number.

It is not a de Polignac number, because 20013653450227 - 2⁷ = 20013653450099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20013653450227.

It is not an unprimeable number, because it can be changed into a prime (20013653450221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2561251974 + ... + 2561259787.

It is an arithmetic number, because the mean of its divisors is an integer number (5004693991474).

Almost surely, 2^{20013653450227} is an apocalyptic number.

20013653450227 is a deficient number, since it is larger than the sum of its proper divisors (5122515669).

20013653450227 is an equidigital number, since it uses as much as digits as its factorization.

20013653450227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122515668.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 20013653450227 in words is "twenty trillion, thirteen billion, six hundred fifty-three million, four hundred fifty thousand, two hundred twenty-seven".