20204325536 has 12 divisors (see below), whose sum is σ = 39777265962. Its totient is φ = 10102162752.

The previous prime is 20204325523. The next prime is 20204325539. The reversal of 20204325536 is 63552340202.

It can be written as a sum of positive squares in only one way, i.e., 10213123600 + 9991201936 = 101060^2 + 99956^2 .

It is a super-3 number, since 3×20204325536³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 631385173 = 20204325536 / (2 + 0 + 2 + 0 + 4 + 3 + 2 + 5 + 5 + 3 + 6).

It is not an unprimeable number, because it can be changed into a prime (20204325539) by changing a digit.

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 as a sum of consecutive naturals, namely, 315692555 + ... + 315692618.

Almost surely, 2^20204325536 is an apocalyptic number.

It is an amenable number.

20204325536 is a deficient number, since it is larger than the sum of its proper divisors (19572940426).

20204325536 is an equidigital number, since it uses as much as digits as its factorization.

20204325536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631385183 (or 631385175 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 20204325536 its reverse (63552340202), we get a palindrome (83756665738).

The spelling of 20204325536 in words is "twenty billion, two hundred four million, three hundred twenty-five thousand, five hundred thirty-six".