20443426501106 has 32 divisors (see below), whose sum is σ = 35421665834880. Its totient is φ = 8667743970816.

The previous prime is 20443426501073. The next prime is 20443426501111. The reversal of 20443426501106 is 60110562434402.

It is a super-2 number, since 2×20443426501106² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20443426501106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8211071 + ... + 10407138.

It is an arithmetic number, because the mean of its divisors is an integer number (1106927057340).

Almost surely, 2^{20443426501106} is an apocalyptic number.

20443426501106 is a deficient number, since it is larger than the sum of its proper divisors (14978239333774).

20443426501106 is a wasteful number, since it uses less digits than its factorization.

20443426501106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18619058.

The product of its (nonzero) digits is 138240, while the sum is 38.

Adding to 20443426501106 its reverse (60110562434402), we get a palindrome (80553988935508).

The spelling of 20443426501106 in words is "twenty trillion, four hundred forty-three billion, four hundred twenty-six million, five hundred one thousand, one hundred six".