5516198957 has 2 divisors, whose sum is σ = 5516198958. Its totient is φ = 5516198956.

The previous prime is 5516198873. The next prime is 5516198977. The reversal of 5516198957 is 7598916155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5397693961 + 118504996 = 73469^2 + 10886^2 .

It is a cyclic number.

It is not a de Polignac number, because 5516198957 - 2²² = 5512004653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5516198977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758099478 + 2758099479.

It is an arithmetic number, because the mean of its divisors is an integer number (2758099479).

Almost surely, 2^5516198957 is an apocalyptic number.

It is an amenable number.

5516198957 is a deficient number, since it is larger than the sum of its proper divisors (1).

5516198957 is an equidigital number, since it uses as much as digits as its factorization.

5516198957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402000, while the sum is 56.

The square root of 5516198957 is about 74271.1179194174. The cubic root of 5516198957 is about 1766.9054376025.

It can be divided in two parts, 5516198 and 957, that added together give a palindrome (5517155).

The spelling of 5516198957 in words is "five billion, five hundred sixteen million, one hundred ninety-eight thousand, nine hundred fifty-seven".