16224644321297 has 2 divisors, whose sum is σ = 16224644321298. Its totient is φ = 16224644321296.

The previous prime is 16224644321219. The next prime is 16224644321323. The reversal of 16224644321297 is 79212344642261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14047983748096 + 2176660573201 = 3748064^2 + 1475351^2 .

It is a cyclic number.

It is not a de Polignac number, because 16224644321297 - 2²² = 16224640126993 is a prime.

It is not a weakly prime, because it can be changed into another prime (16224644351297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112322160648 + 8112322160649.

It is an arithmetic number, because the mean of its divisors is an integer number (8112322160649).

Almost surely, 2^{16224644321297} is an apocalyptic number.

It is an amenable number.

16224644321297 is a deficient number, since it is larger than the sum of its proper divisors (1).

16224644321297 is an equidigital number, since it uses as much as digits as its factorization.

16224644321297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 53.

The spelling of 16224644321297 in words is "sixteen trillion, two hundred twenty-four billion, six hundred forty-four million, three hundred twenty-one thousand, two hundred ninety-seven".