2155323030163 has 2 divisors, whose sum is σ = 2155323030164. Its totient is φ = 2155323030162.

The previous prime is 2155323030139. The next prime is 2155323030281. The reversal of 2155323030163 is 3610303235512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155323030163 is a prime.

It is not a weakly prime, because it can be changed into another prime (2155323330163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077661515081 + 1077661515082.

It is an arithmetic number, because the mean of its divisors is an integer number (1077661515082).

Almost surely, 2^{2155323030163} is an apocalyptic number.

2155323030163 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155323030163 is an equidigital number, since it uses as much as digits as its factorization.

2155323030163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 2155323030163 its reverse (3610303235512), we get a palindrome (5765626265675).

The spelling of 2155323030163 in words is "two trillion, one hundred fifty-five billion, three hundred twenty-three million, thirty thousand, one hundred sixty-three".