5172166999 has 2 divisors, whose sum is σ = 5172167000. Its totient is φ = 5172166998.

The previous prime is 5172166997. The next prime is 5172167111. The reversal of 5172166999 is 9996612715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5172166999 - 2¹ = 5172166997 is a prime.

It is a super-2 number, since 2×5172166999² = 53502622931089332002, which contains 22 as substring.

Together with 5172166997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5172166997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2586083499 + 2586083500.

It is an arithmetic number, because the mean of its divisors is an integer number (2586083500).

Almost surely, 2^5172166999 is an apocalyptic number.

5172166999 is a deficient number, since it is larger than the sum of its proper divisors (1).

5172166999 is an equidigital number, since it uses as much as digits as its factorization.

5172166999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 55.

The square root of 5172166999 is about 71917.7794359642. The cubic root of 5172166999 is about 1729.3816493257.

The spelling of 5172166999 in words is "five billion, one hundred seventy-two million, one hundred sixty-six thousand, nine hundred ninety-nine".