2116611536131 has 2 divisors, whose sum is σ = 2116611536132. Its totient is φ = 2116611536130.

The previous prime is 2116611536129. The next prime is 2116611536183. The reversal of 2116611536131 is 1316351166112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2116611536131 - 2¹ = 2116611536129 is a prime.

It is a super-2 number, since 2×2116611536131² (a number of 25 digits) contains 22 as substring.

Together with 2116611536129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2116611536101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058305768065 + 1058305768066.

It is an arithmetic number, because the mean of its divisors is an integer number (1058305768066).

Almost surely, 2^{2116611536131} is an apocalyptic number.

2116611536131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116611536131 is an equidigital number, since it uses as much as digits as its factorization.

2116611536131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 37.

The spelling of 2116611536131 in words is "two trillion, one hundred sixteen billion, six hundred eleven million, five hundred thirty-six thousand, one hundred thirty-one".