20554135504204 has 6 divisors (see below), whose sum is σ = 35969737132364. Its totient is φ = 10277067752100.

The previous prime is 20554135504159. The next prime is 20554135504211. The reversal of 20554135504204 is 40240553145502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2569266938022 + ... + 2569266938029.

Almost surely, 2^{20554135504204} is an apocalyptic number.

It is an amenable number.

20554135504204 is a deficient number, since it is larger than the sum of its proper divisors (15415601628160).

20554135504204 is a wasteful number, since it uses less digits than its factorization.

20554135504204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138533876055 (or 5138533876053 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 20554135504204 its reverse (40240553145502), we get a palindrome (60794688649706).

The spelling of 20554135504204 in words is "twenty trillion, five hundred fifty-four billion, one hundred thirty-five million, five hundred four thousand, two hundred four".