7115168615081 has 2 divisors, whose sum is σ = 7115168615082. Its totient is φ = 7115168615080.

The previous prime is 7115168615077. The next prime is 7115168615119. The reversal of 7115168615081 is 1805168615117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6836446915600 + 278721699481 = 2614660^2 + 527941^2 .

It is a cyclic number.

It is not a de Polignac number, because 7115168615081 - 2² = 7115168615077 is a prime.

It is a super-2 number, since 2×7115168615081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7115168615021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3557584307540 + 3557584307541.

It is an arithmetic number, because the mean of its divisors is an integer number (3557584307541).

Almost surely, 2^{7115168615081} is an apocalyptic number.

It is an amenable number.

7115168615081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7115168615081 is an equidigital number, since it uses as much as digits as its factorization.

7115168615081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 50.

The spelling of 7115168615081 in words is "seven trillion, one hundred fifteen billion, one hundred sixty-eight million, six hundred fifteen thousand, eighty-one".