6116556557 has 2 divisors, whose sum is σ = 6116556558. Its totient is φ = 6116556556.

The previous prime is 6116556539. The next prime is 6116556569. The reversal of 6116556557 is 7556556116.

6116556557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4354152196 + 1762404361 = 65986^2 + 41981^2 .

It is a cyclic number.

It is not a de Polignac number, because 6116556557 - 2¹⁶ = 6116491021 is a prime.

It is a super-2 number, since 2×6116556557² = 74824528229959388498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6116556577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058278278 + 3058278279.

It is an arithmetic number, because the mean of its divisors is an integer number (3058278279).

Almost surely, 2^6116556557 is an apocalyptic number.

It is an amenable number.

6116556557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6116556557 is an equidigital number, since it uses as much as digits as its factorization.

6116556557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945000, while the sum is 47.

The square root of 6116556557 is about 78208.4174306065. The cubic root of 6116556557 is about 1828.8117299089.

The spelling of 6116556557 in words is "six billion, one hundred sixteen million, five hundred fifty-six thousand, five hundred fifty-seven".