20045424205 has 32 divisors (see below), whose sum is σ = 24631423488. Its totient is φ = 15657408000.

The previous prime is 20045424193. The next prime is 20045424229. The reversal of 20045424205 is 50242454002.

It is not a de Polignac number, because 20045424205 - 2¹⁵ = 20045391437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15407055 + ... + 15408355.

It is an arithmetic number, because the mean of its divisors is an integer number (769731984).

Almost surely, 2^20045424205 is an apocalyptic number.

It is an amenable number.

20045424205 is a deficient number, since it is larger than the sum of its proper divisors (4585999283).

20045424205 is a wasteful number, since it uses less digits than its factorization.

20045424205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 12800, while the sum is 28.

Adding to 20045424205 its reverse (50242454002), we get a palindrome (70287878207).

The spelling of 20045424205 in words is "twenty billion, forty-five million, four hundred twenty-four thousand, two hundred five".