20404211054 has 4 divisors (see below), whose sum is σ = 30606316584. Its totient is φ = 10202105526.

The previous prime is 20404211041. The next prime is 20404211057. The reversal of 20404211054 is 45011240402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20404211057) by changing a digit.

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, 5101052762 + ... + 5101052765.

It is an arithmetic number, because the mean of its divisors is an integer number (7651579146).

Almost surely, 2^20404211054 is an apocalyptic number.

20404211054 is a deficient number, since it is larger than the sum of its proper divisors (10202105530).

20404211054 is a wasteful number, since it uses less digits than its factorization.

20404211054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10202105529.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 20404211054 its reverse (45011240402), we get a palindrome (65415451456).

The spelling of 20404211054 in words is "twenty billion, four hundred four million, two hundred eleven thousand, fifty-four".