20004037126 has 16 divisors (see below), whose sum is σ = 30293227584. Its totient is φ = 9906336424.

The previous prime is 20004037111. The next prime is 20004037127. The reversal of 20004037126 is 62173040002.

It is a self number, because there is not a number n which added to its sum of digits gives 20004037126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20004037127) by changing a digit.

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, 1397361 + ... + 1411603.

It is an arithmetic number, because the mean of its divisors is an integer number (1893326724).

Almost surely, 2^20004037126 is an apocalyptic number.

20004037126 is a deficient number, since it is larger than the sum of its proper divisors (10289190458).

20004037126 is a wasteful number, since it uses less digits than its factorization.

20004037126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20915.

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 20004037126 its reverse (62173040002), we get a palindrome (82177077128).

The spelling of 20004037126 in words is "twenty billion, four million, thirty-seven thousand, one hundred twenty-six".