20044360073 has 4 divisors (see below), whose sum is σ = 20079963408. Its totient is φ = 20008756740.

The previous prime is 20044360043. The next prime is 20044360093. The reversal of 20044360073 is 37006344002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20044360073 - 2¹² = 20044355977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20044360033) 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 in 3 ways as a sum of consecutive naturals, for example, 17800823 + ... + 17801948.

It is an arithmetic number, because the mean of its divisors is an integer number (5019990852).

Almost surely, 2^20044360073 is an apocalyptic number.

It is an amenable number.

20044360073 is a deficient number, since it is larger than the sum of its proper divisors (35603335).

20044360073 is an equidigital number, since it uses as much as digits as its factorization.

20044360073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35603334.

The product of its (nonzero) digits is 12096, while the sum is 29.

The spelling of 20044360073 in words is "twenty billion, forty-four million, three hundred sixty thousand, seventy-three".