5055516016591 has 2 divisors, whose sum is σ = 5055516016592. Its totient is φ = 5055516016590.

The previous prime is 5055516016561. The next prime is 5055516016597. The reversal of 5055516016591 is 1956106155505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5055516016591 - 2²¹ = 5055513919439 is a prime.

It is a super-2 number, since 2×5055516016591² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5055516016597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527758008295 + 2527758008296.

It is an arithmetic number, because the mean of its divisors is an integer number (2527758008296).

Almost surely, 2^{5055516016591} is an apocalyptic number.

5055516016591 is a deficient number, since it is larger than the sum of its proper divisors (1).

5055516016591 is an equidigital number, since it uses as much as digits as its factorization.

5055516016591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1012500, while the sum is 49.

The spelling of 5055516016591 in words is "five trillion, fifty-five billion, five hundred sixteen million, sixteen thousand, five hundred ninety-one".