20160444569 has 2 divisors, whose sum is σ = 20160444570. Its totient is φ = 20160444568.

The previous prime is 20160444511. The next prime is 20160444599. The reversal of 20160444569 is 96544406102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18462015625 + 1698428944 = 135875^2 + 41212^2 .

It is a cyclic number.

It is not a de Polignac number, because 20160444569 - 2¹² = 20160440473 is a prime.

It is a super-2 number, since 2×20160444569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20160444599) by changing a digit.

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 as a sum of consecutive naturals, namely, 10080222284 + 10080222285.

It is an arithmetic number, because the mean of its divisors is an integer number (10080222285).

Almost surely, 2^20160444569 is an apocalyptic number.

It is an amenable number.

20160444569 is a deficient number, since it is larger than the sum of its proper divisors (1).

20160444569 is an equidigital number, since it uses as much as digits as its factorization.

20160444569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 20160444569 in words is "twenty billion, one hundred sixty million, four hundred forty-four thousand, five hundred sixty-nine".