20430413055 has 128 divisors (see below), whose sum is σ = 40451389440. Its totient is φ = 9719377920.

The previous prime is 20430413053. The next prime is 20430413093. The reversal of 20430413055 is 55031403402.

It is not a de Polignac number, because 20430413055 - 2¹ = 20430413053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430413053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7318710 + ... + 7321500.

It is an arithmetic number, because the mean of its divisors is an integer number (316026480).

Almost surely, 2^20430413055 is an apocalyptic number.

20430413055 is a deficient number, since it is larger than the sum of its proper divisors (20020976385).

20430413055 is a wasteful number, since it uses less digits than its factorization.

20430413055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958 (or 2952 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20430413055 its reverse (55031403402), we get a palindrome (75461816457).

The spelling of 20430413055 in words is "twenty billion, four hundred thirty million, four hundred thirteen thousand, fifty-five".