16168364117 has 2 divisors, whose sum is σ = 16168364118. Its totient is φ = 16168364116.

The previous prime is 16168364077. The next prime is 16168364129. The reversal of 16168364117 is 71146386161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16149580561 + 18783556 = 127081^2 + 4334^2 .

It is a cyclic number.

It is not a de Polignac number, because 16168364117 - 2¹⁰ = 16168363093 is a prime.

It is a super-2 number, since 2×16168364117² (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 (16168364417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8084182058 + 8084182059.

It is an arithmetic number, because the mean of its divisors is an integer number (8084182059).

Almost surely, 2^16168364117 is an apocalyptic number.

It is an amenable number.

16168364117 is a deficient number, since it is larger than the sum of its proper divisors (1).

16168364117 is an equidigital number, since it uses as much as digits as its factorization.

16168364117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The spelling of 16168364117 in words is "sixteen billion, one hundred sixty-eight million, three hundred sixty-four thousand, one hundred seventeen".