20436065122443 has 48 divisors (see below), whose sum is σ = 28891224762624. Its totient is φ = 12845594583360.

The previous prime is 20436065122411. The next prime is 20436065122453. The reversal of 20436065122443 is 34422156063402.

It is a happy number.

It is not a de Polignac number, because 20436065122443 - 2⁵ = 20436065122411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20436065122395 and 20436065122404.

It is not an unprimeable number, because it can be changed into a prime (20436065122453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 680892105 + ... + 680922117.

It is an arithmetic number, because the mean of its divisors is an integer number (601900515888).

Almost surely, 2^{20436065122443} is an apocalyptic number.

20436065122443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20436065122443 is a deficient number, since it is larger than the sum of its proper divisors (8455159640181).

20436065122443 is a wasteful number, since it uses less digits than its factorization.

20436065122443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36176 (or 36153 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 20436065122443 in words is "twenty trillion, four hundred thirty-six billion, sixty-five million, one hundred twenty-two thousand, four hundred forty-three".