20534034005 has 8 divisors (see below), whose sum is σ = 24736721112. Its totient is φ = 16363307008.

The previous prime is 20534033941. The next prime is 20534034007. The reversal of 20534034005 is 50043043502.

It can be written as a sum of positive squares in 4 ways, for example, as 4838454481 + 15695579524 = 69559^2 + 125282^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20534034005 - 2⁶ = 20534033941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20534034007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7988612 + ... + 7991181.

It is an arithmetic number, because the mean of its divisors is an integer number (3092090139).

Almost surely, 2^20534034005 is an apocalyptic number.

It is an amenable number.

20534034005 is a deficient number, since it is larger than the sum of its proper divisors (4202687107).

20534034005 is a wasteful number, since it uses less digits than its factorization.

20534034005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15980055.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 20534034005 its reverse (50043043502), we get a palindrome (70577077507).

The spelling of 20534034005 in words is "twenty billion, five hundred thirty-four million, thirty-four thousand, five".