20044411505 has 16 divisors (see below), whose sum is σ = 24526914048. Its totient is φ = 15722280000.

The previous prime is 20044411451. The next prime is 20044411547. The reversal of 20044411505 is 50511444002.

It is not a de Polignac number, because 20044411505 - 2⁶ = 20044411441 is a prime.

It is a super-3 number, since 3×20044411505³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91721 + ... + 220230.

It is an arithmetic number, because the mean of its divisors is an integer number (1532932128).

Almost surely, 2^20044411505 is an apocalyptic number.

It is an amenable number.

20044411505 is a deficient number, since it is larger than the sum of its proper divisors (4482502543).

20044411505 is a wasteful number, since it uses less digits than its factorization.

20044411505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312208.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 20044411505 its reverse (50511444002), we get a palindrome (70555855507).

The spelling of 20044411505 in words is "twenty billion, forty-four million, four hundred eleven thousand, five hundred five".