20424204324055 has 16 divisors (see below), whose sum is σ = 28485088842240. Its totient is φ = 13767792937632.

The previous prime is 20424204324053. The next prime is 20424204324071. The reversal of 20424204324055 is 55042340242402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20424204324055 - 2¹ = 20424204324053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424204324053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4945325859 + ... + 4945329988.

It is an arithmetic number, because the mean of its divisors is an integer number (1780318052640).

Almost surely, 2^{20424204324055} is an apocalyptic number.

20424204324055 is a deficient number, since it is larger than the sum of its proper divisors (8060884518185).

20424204324055 is an equidigital number, since it uses as much as digits as its factorization.

20424204324055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890655918.

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 20424204324055 its reverse (55042340242402), we get a palindrome (75466544566457).

The spelling of 20424204324055 in words is "twenty trillion, four hundred twenty-four billion, two hundred four million, three hundred twenty-four thousand, fifty-five".