16030440425 has 6 divisors (see below), whose sum is σ = 19877746158. Its totient is φ = 12824352320.

The previous prime is 16030440397. The next prime is 16030440427. The reversal of 16030440425 is 52404403061.

It can be written as a sum of positive squares in 3 ways, for example, as 206813161 + 15823627264 = 14381^2 + 125792^2 .

It is not a de Polignac number, because 16030440425 - 2¹⁴ = 16030424041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16030440427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320608784 + ... + 320608833.

It is an arithmetic number, because the mean of its divisors is an integer number (3312957693).

Almost surely, 2^16030440425 is an apocalyptic number.

It is an amenable number.

16030440425 is a deficient number, since it is larger than the sum of its proper divisors (3847305733).

16030440425 is an equidigital number, since it uses as much as digits as its factorization.

16030440425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641217627 (or 641217622 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 16030440425 its reverse (52404403061), we get a palindrome (68434843486).

The spelling of 16030440425 in words is "sixteen billion, thirty million, four hundred forty thousand, four hundred twenty-five".