20603624055 has 128 divisors (see below), whose sum is σ = 39680409600. Its totient is φ = 8931009024.

The previous prime is 20603624039. The next prime is 20603624057. The reversal of 20603624055 is 55042630602.

It is not a de Polignac number, because 20603624055 - 2⁴ = 20603624039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20603624057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 56140482 + ... + 56140848.

It is an arithmetic number, because the mean of its divisors is an integer number (310003200).

Almost surely, 2^20603624055 is an apocalyptic number.

20603624055 is a deficient number, since it is larger than the sum of its proper divisors (19076785545).

20603624055 is a wasteful number, since it uses less digits than its factorization.

20603624055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 20603624055 in words is "twenty billion, six hundred three million, six hundred twenty-four thousand, fifty-five".