20044535163 has 4 divisors (see below), whose sum is σ = 26726046888. Its totient is φ = 13363023440.

The previous prime is 20044535153. The next prime is 20044535177. The reversal of 20044535163 is 36153544002.

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

It is a cyclic number.

It is not a de Polignac number, because 20044535163 - 2⁶ = 20044535099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20044535123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340755858 + ... + 3340755863.

It is an arithmetic number, because the mean of its divisors is an integer number (6681511722).

Almost surely, 2^20044535163 is an apocalyptic number.

20044535163 is a deficient number, since it is larger than the sum of its proper divisors (6681511725).

20044535163 is an equidigital number, since it uses as much as digits as its factorization.

20044535163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6681511724.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 20044535163 in words is "twenty billion, forty-four million, five hundred thirty-five thousand, one hundred sixty-three".