20104104450 has 48 divisors (see below), whose sum is σ = 49888190880. Its totient is φ = 5357867520.

The previous prime is 20104104413. The next prime is 20104104467. The reversal of 20104104450 is 5440140102.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 215061 + ... + 294039.

It is an arithmetic number, because the mean of its divisors is an integer number (1039337310).

Almost surely, 2^20104104450 is an apocalyptic number.

20104104450 is an abundant number, since it is smaller than the sum of its proper divisors (29784086430).

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

20104104450 is a wasteful number, since it uses less digits than its factorization.

20104104450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80691 (or 80686 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 20104104450 its reverse (5440140102), we get a palindrome (25544244552).

The spelling of 20104104450 in words is "twenty billion, one hundred four million, one hundred four thousand, four hundred fifty".