16416664736503 has 2 divisors, whose sum is σ = 16416664736504. Its totient is φ = 16416664736502.

The previous prime is 16416664736419. The next prime is 16416664736519. The reversal of 16416664736503 is 30563746661461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16416664736503 - 2¹³ = 16416664728311 is a prime.

It is a super-2 number, since 2×16416664736503² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16416664737503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208332368251 + 8208332368252.

It is an arithmetic number, because the mean of its divisors is an integer number (8208332368252).

Almost surely, 2^{16416664736503} is an apocalyptic number.

16416664736503 is a deficient number, since it is larger than the sum of its proper divisors (1).

16416664736503 is an equidigital number, since it uses as much as digits as its factorization.

16416664736503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 58.

The spelling of 16416664736503 in words is "sixteen trillion, four hundred sixteen billion, six hundred sixty-four million, seven hundred thirty-six thousand, five hundred three".