2116262550191 has 2 divisors, whose sum is σ = 2116262550192. Its totient is φ = 2116262550190.

The previous prime is 2116262550173. The next prime is 2116262550211. The reversal of 2116262550191 is 1910552626112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2116262550191 - 2¹⁴ = 2116262533807 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116262550091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058131275095 + 1058131275096.

It is an arithmetic number, because the mean of its divisors is an integer number (1058131275096).

Almost surely, 2^{2116262550191} is an apocalyptic number.

2116262550191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116262550191 is an equidigital number, since it uses as much as digits as its factorization.

2116262550191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 2116262550191 in words is "two trillion, one hundred sixteen billion, two hundred sixty-two million, five hundred fifty thousand, one hundred ninety-one".