20004145504 has 48 divisors (see below), whose sum is σ = 45153285408. Its totient is φ = 8545784832.

The previous prime is 20004145487. The next prime is 20004145523. The reversal of 20004145504 is 40554140002.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 72547 + ... + 212770.

It is an arithmetic number, because the mean of its divisors is an integer number (940693446).

Almost surely, 2^20004145504 is an apocalyptic number.

It is an amenable number.

20004145504 is an abundant number, since it is smaller than the sum of its proper divisors (25149139904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20004145504 is a wasteful number, since it uses less digits than its factorization.

20004145504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285647 (or 285639 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 20004145504 its reverse (40554140002), we get a palindrome (60558285506).

The spelling of 20004145504 in words is "twenty billion, four million, one hundred forty-five thousand, five hundred four".