13156416173 has 2 divisors, whose sum is σ = 13156416174. Its totient is φ = 13156416172.

The previous prime is 13156416101. The next prime is 13156416197. The reversal of 13156416173 is 37161465131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11422693129 + 1733723044 = 106877^2 + 41638^2 .

It is a cyclic number.

It is not a de Polignac number, because 13156416173 - 2¹⁶ = 13156350637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13156412173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578208086 + 6578208087.

It is an arithmetic number, because the mean of its divisors is an integer number (6578208087).

Almost surely, 2^13156416173 is an apocalyptic number.

It is an amenable number.

13156416173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13156416173 is an equidigital number, since it uses as much as digits as its factorization.

13156416173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The spelling of 13156416173 in words is "thirteen billion, one hundred fifty-six million, four hundred sixteen thousand, one hundred seventy-three".