2116611503473 has 2 divisors, whose sum is σ = 2116611503474. Its totient is φ = 2116611503472.

The previous prime is 2116611503401. The next prime is 2116611503543. The reversal of 2116611503473 is 3743051166112.

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., 1155048871824 + 961562631649 = 1074732^2 + 980593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116611503473 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116611503273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058305751736 + 1058305751737.

It is an arithmetic number, because the mean of its divisors is an integer number (1058305751737).

Almost surely, 2^{2116611503473} is an apocalyptic number.

It is an amenable number.

2116611503473 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116611503473 is an equidigital number, since it uses as much as digits as its factorization.

2116611503473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 2116611503473 its reverse (3743051166112), we get a palindrome (5859662669585).

The spelling of 2116611503473 in words is "two trillion, one hundred sixteen billion, six hundred eleven million, five hundred three thousand, four hundred seventy-three".