16466010521 has 2 divisors, whose sum is σ = 16466010522. Its totient is φ = 16466010520.

The previous prime is 16466010487. The next prime is 16466010551. The reversal of 16466010521 is 12501066461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13086216025 + 3379794496 = 114395^2 + 58136^2 .

It is a cyclic number.

It is not a de Polignac number, because 16466010521 - 2¹⁴ = 16465994137 is a prime.

It is a super-2 number, since 2×16466010521² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16466010551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8233005260 + 8233005261.

It is an arithmetic number, because the mean of its divisors is an integer number (8233005261).

Almost surely, 2^16466010521 is an apocalyptic number.

It is an amenable number.

16466010521 is a deficient number, since it is larger than the sum of its proper divisors (1).

16466010521 is an equidigital number, since it uses as much as digits as its factorization.

16466010521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 16466010521 its reverse (12501066461), we get a palindrome (28967076982).

The spelling of 16466010521 in words is "sixteen billion, four hundred sixty-six million, ten thousand, five hundred twenty-one".