2116715053837 has 2 divisors, whose sum is σ = 2116715053838. Its totient is φ = 2116715053836.

The previous prime is 2116715053729. The next prime is 2116715053841. The reversal of 2116715053837 is 7383505176112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1810071561321 + 306643492516 = 1345389^2 + 553754^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116715053837 is a prime.

It is a super-4 number, since 4×2116715053837⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116715053847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058357526918 + 1058357526919.

It is an arithmetic number, because the mean of its divisors is an integer number (1058357526919).

Almost surely, 2^{2116715053837} is an apocalyptic number.

It is an amenable number.

2116715053837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116715053837 is an equidigital number, since it uses as much as digits as its factorization.

2116715053837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 2116715053837 in words is "two trillion, one hundred sixteen billion, seven hundred fifteen million, fifty-three thousand, eight hundred thirty-seven".