2116499612837 has 2 divisors, whose sum is σ = 2116499612838. Its totient is φ = 2116499612836.

The previous prime is 2116499612809. The next prime is 2116499612839. The reversal of 2116499612837 is 7382169946112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1402864949476 + 713634663361 = 1184426^2 + 844769^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116499612837 - 2¹⁰ = 2116499611813 is a prime.

It is a super-2 number, since 2×2116499612837² (a number of 25 digits) contains 22 as substring.

Together with 2116499612839, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116499612839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058249806418 + 1058249806419.

It is an arithmetic number, because the mean of its divisors is an integer number (1058249806419).

Almost surely, 2^{2116499612837} is an apocalyptic number.

It is an amenable number.

2116499612837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116499612837 is an equidigital number, since it uses as much as digits as its factorization.

2116499612837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 2116499612837 in words is "two trillion, one hundred sixteen billion, four hundred ninety-nine million, six hundred twelve thousand, eight hundred thirty-seven".