20441443015 has 16 divisors (see below), whose sum is σ = 28348971840. Its totient is φ = 13859493120.

The previous prime is 20441443013. The next prime is 20441443027. The reversal of 20441443015 is 51034414402.

It is not a de Polignac number, because 20441443015 - 2¹ = 20441443013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441443013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3278016 + ... + 3284245.

It is an arithmetic number, because the mean of its divisors is an integer number (1771810740).

Almost surely, 2^20441443015 is an apocalyptic number.

20441443015 is a deficient number, since it is larger than the sum of its proper divisors (7907528825).

20441443015 is an equidigital number, since it uses as much as digits as its factorization.

20441443015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562362.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 20441443015 its reverse (51034414402), we get a palindrome (71475857417).

The spelling of 20441443015 in words is "twenty billion, four hundred forty-one million, four hundred forty-three thousand, fifteen".