16493645824519 has 2 divisors, whose sum is σ = 16493645824520. Its totient is φ = 16493645824518.

The previous prime is 16493645824507. The next prime is 16493645824561. The reversal of 16493645824519 is 91542854639461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16493645824519 - 2¹¹ = 16493645822471 is a prime.

It is a super-2 number, since 2×16493645824519² (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 (16493645824819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8246822912259 + 8246822912260.

It is an arithmetic number, because the mean of its divisors is an integer number (8246822912260).

Almost surely, 2^{16493645824519} is an apocalyptic number.

16493645824519 is a deficient number, since it is larger than the sum of its proper divisors (1).

16493645824519 is an equidigital number, since it uses as much as digits as its factorization.

16493645824519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 223948800, while the sum is 67.

The spelling of 16493645824519 in words is "sixteen trillion, four hundred ninety-three billion, six hundred forty-five million, eight hundred twenty-four thousand, five hundred nineteen".