16169434613 has 2 divisors, whose sum is σ = 16169434614. Its totient is φ = 16169434612.

The previous prime is 16169434591. The next prime is 16169434651. The reversal of 16169434613 is 31643496161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13014702724 + 3154731889 = 114082^2 + 56167^2 .

It is an emirp because it is prime and its reverse (31643496161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16169434613 - 2¹⁸ = 16169172469 is a prime.

It is a super-2 number, since 2×16169434613² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16169434013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8084717306 + 8084717307.

It is an arithmetic number, because the mean of its divisors is an integer number (8084717307).

Almost surely, 2^16169434613 is an apocalyptic number.

It is an amenable number.

16169434613 is a deficient number, since it is larger than the sum of its proper divisors (1).

16169434613 is an equidigital number, since it uses as much as digits as its factorization.

16169434613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The spelling of 16169434613 in words is "sixteen billion, one hundred sixty-nine million, four hundred thirty-four thousand, six hundred thirteen".