11516404453 has 2 divisors, whose sum is σ = 11516404454. Its totient is φ = 11516404452.

The previous prime is 11516404399. The next prime is 11516404481. The reversal of 11516404453 is 35440461511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7662726369 + 3853678084 = 87537^2 + 62078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11516404453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11516404853) 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, 5758202226 + 5758202227.

It is an arithmetic number, because the mean of its divisors is an integer number (5758202227).

Almost surely, 2^11516404453 is an apocalyptic number.

It is an amenable number.

11516404453 is a deficient number, since it is larger than the sum of its proper divisors (1).

11516404453 is an equidigital number, since it uses as much as digits as its factorization.

11516404453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 11516404453 its reverse (35440461511), we get a palindrome (46956865964).

The spelling of 11516404453 in words is "eleven billion, five hundred sixteen million, four hundred four thousand, four hundred fifty-three".