6161115211 has 2 divisors, whose sum is σ = 6161115212. Its totient is φ = 6161115210.

The previous prime is 6161115187. The next prime is 6161115277. The reversal of 6161115211 is 1125111616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6161115211 - 2²¹ = 6159018059 is a prime.

It is not a weakly prime, because it can be changed into another prime (6161118211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3080557605 + 3080557606.

It is an arithmetic number, because the mean of its divisors is an integer number (3080557606).

Almost surely, 2^6161115211 is an apocalyptic number.

6161115211 is a deficient number, since it is larger than the sum of its proper divisors (1).

6161115211 is an equidigital number, since it uses as much as digits as its factorization.

6161115211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 25.

The square root of 6161115211 is about 78492.7717117952. The cubic root of 6161115211 is about 1833.2419080102.

Adding to 6161115211 its reverse (1125111616), we get a palindrome (7286226827).

The spelling of 6161115211 in words is "six billion, one hundred sixty-one million, one hundred fifteen thousand, two hundred eleven".