5156318267161 has 4 divisors (see below), whose sum is σ = 5157630645300. Its totient is φ = 5155005889024.

The previous prime is 5156318267101. The next prime is 5156318267167. The reversal of 5156318267161 is 1617628136515.

5156318267161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3456048312025 + 1700269955136 = 1859045^2 + 1303944^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156318267161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5156318267099 and 5156318267108.

It is not an unprimeable number, because it can be changed into a prime (5156318267167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656183176 + ... + 656191033.

It is an arithmetic number, because the mean of its divisors is an integer number (1289407661325).

Almost surely, 2^{5156318267161} is an apocalyptic number.

It is an amenable number.

5156318267161 is a deficient number, since it is larger than the sum of its proper divisors (1312378139).

5156318267161 is a wasteful number, since it uses less digits than its factorization.

5156318267161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312378138.

The product of its digits is 1814400, while the sum is 52.

The spelling of 5156318267161 in words is "five trillion, one hundred fifty-six billion, three hundred eighteen million, two hundred sixty-seven thousand, one hundred sixty-one".