20544854404 has 12 divisors (see below), whose sum is σ = 35957137104. Its totient is φ = 10271386664.

The previous prime is 20544854383. The next prime is 20544854419. The reversal of 20544854404 is 40445844502.

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 3 ways as a sum of consecutive naturals, for example, 214834 + ... + 295369.

It is an arithmetic number, because the mean of its divisors is an integer number (2996428092).

Almost surely, 2^20544854404 is an apocalyptic number.

It is an amenable number.

20544854404 is a deficient number, since it is larger than the sum of its proper divisors (15412282700).

20544854404 is a wasteful number, since it uses less digits than its factorization.

20544854404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520274 (or 520272 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 40.

The spelling of 20544854404 in words is "twenty billion, five hundred forty-four million, eight hundred fifty-four thousand, four hundred four".