16226400336325 has 6 divisors (see below), whose sum is σ = 20120736417074. Its totient is φ = 12981120269040.

The previous prime is 16226400336319. The next prime is 16226400336343. The reversal of 16226400336325 is 52363300462261.

It can be written as a sum of positive squares in 3 ways, for example, as 2303009599489 + 13923390736836 = 1517567^2 + 3731406^2 .

It is not a de Polignac number, because 16226400336325 - 2¹⁹ = 16226399812037 is a prime.

It is a super-2 number, since 2×16226400336325² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 324528006702 + ... + 324528006751.

Almost surely, 2^{16226400336325} is an apocalyptic number.

It is an amenable number.

16226400336325 is a deficient number, since it is larger than the sum of its proper divisors (3894336080749).

16226400336325 is an equidigital number, since it uses as much as digits as its factorization.

16226400336325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649056013463 (or 649056013458 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 43.

Adding to 16226400336325 its reverse (52363300462261), we get a palindrome (68589700798586).

The spelling of 16226400336325 in words is "sixteen trillion, two hundred twenty-six billion, four hundred million, three hundred thirty-six thousand, three hundred twenty-five".