16063321 has 2 divisors, whose sum is σ = 16063322. Its totient is φ = 16063320.

The previous prime is 16063279. The next prime is 16063357. The reversal of 16063321 is 12336061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 547600 = 3939^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 16063321 - 2⁷ = 16063193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16063292 and 16063301.

It is not a weakly prime, because it can be changed into another prime (16063391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8031660 + 8031661.

It is an arithmetic number, because the mean of its divisors is an integer number (8031661).

Almost surely, 2^16063321 is an apocalyptic number.

It is an amenable number.

16063321 is a deficient number, since it is larger than the sum of its proper divisors (1).

16063321 is an equidigital number, since it uses as much as digits as its factorization.

16063321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 16063321 is about 4007.9073093074. The cubic root of 16063321 is about 252.3161868436.

Adding to 16063321 its reverse (12336061), we get a palindrome (28399382).

It can be divided in two parts, 16063 and 321, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 16063321 in words is "sixteen million, sixty-three thousand, three hundred twenty-one".