16452300636221 has 2 divisors, whose sum is σ = 16452300636222. Its totient is φ = 16452300636220.

The previous prime is 16452300636217. The next prime is 16452300636269. The reversal of 16452300636221 is 12263600325461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16451046768121 + 1253868100 = 4055989^2 + 35410^2 .

It is a cyclic number.

It is not a de Polignac number, because 16452300636221 - 2² = 16452300636217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16452300236221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226150318110 + 8226150318111.

It is an arithmetic number, because the mean of its divisors is an integer number (8226150318111).

Almost surely, 2^{16452300636221} is an apocalyptic number.

It is an amenable number.

16452300636221 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452300636221 is an equidigital number, since it uses as much as digits as its factorization.

16452300636221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 16452300636221 in words is "sixteen trillion, four hundred fifty-two billion, three hundred million, six hundred thirty-six thousand, two hundred twenty-one".