20404000522436 has 6 divisors (see below), whose sum is σ = 35707000914270. Its totient is φ = 10202000261216.

The previous prime is 20404000522421. The next prime is 20404000522457. The reversal of 20404000522436 is 63422500040402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19668426708100 + 735573814336 = 4434910^2 + 857656^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2550500065301 + ... + 2550500065308.

It is an arithmetic number, because the mean of its divisors is an integer number (5951166819045).

Almost surely, 2^{20404000522436} is an apocalyptic number.

It is an amenable number.

20404000522436 is a deficient number, since it is larger than the sum of its proper divisors (15303000391834).

20404000522436 is a wasteful number, since it uses less digits than its factorization.

20404000522436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101000130613 (or 5101000130611 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 20404000522436 its reverse (63422500040402), we get a palindrome (83826500562838).

The spelling of 20404000522436 in words is "twenty trillion, four hundred four billion, five hundred twenty-two thousand, four hundred thirty-six".