16516614173 has 2 divisors, whose sum is σ = 16516614174. Its totient is φ = 16516614172.

The previous prime is 16516614113. The next prime is 16516614211. The reversal of 16516614173 is 37141661561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14748159364 + 1768454809 = 121442^2 + 42053^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16516614173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16516614173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16516614113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8258307086 + 8258307087.

It is an arithmetic number, because the mean of its divisors is an integer number (8258307087).

Almost surely, 2^16516614173 is an apocalyptic number.

It is an amenable number.

16516614173 is a deficient number, since it is larger than the sum of its proper divisors (1).

16516614173 is an equidigital number, since it uses as much as digits as its factorization.

16516614173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The spelling of 16516614173 in words is "sixteen billion, five hundred sixteen million, six hundred fourteen thousand, one hundred seventy-three".