20204325506 has 8 divisors (see below), whose sum is σ = 30347836284. Its totient is φ = 10088380080.

The previous prime is 20204325481. The next prime is 20204325523. The reversal of 20204325506 is 60552340202.

It can be written as a sum of positive squares in 2 ways, for example, as 20147247481 + 57078025 = 141941^2 + 7555^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6889505 + ... + 6892436.

Almost surely, 2^20204325506 is an apocalyptic number.

20204325506 is a deficient number, since it is larger than the sum of its proper divisors (10143510778).

20204325506 is a wasteful number, since it uses less digits than its factorization.

20204325506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13782676.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20204325506 its reverse (60552340202), we get a palindrome (80756665708).

The spelling of 20204325506 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred six".