5171666885377 has 2 divisors, whose sum is σ = 5171666885378. Its totient is φ = 5171666885376.

The previous prime is 5171666885311. The next prime is 5171666885453. The reversal of 5171666885377 is 7735886661715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3380041803121 + 1791625082256 = 1838489^2 + 1338516^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171666885377 - 2⁷ = 5171666885249 is a prime.

It is a super-2 number, since 2×5171666885377² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5171666880377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585833442688 + 2585833442689.

It is an arithmetic number, because the mean of its divisors is an integer number (2585833442689).

Almost surely, 2^{5171666885377} is an apocalyptic number.

It is an amenable number.

5171666885377 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171666885377 is an equidigital number, since it uses as much as digits as its factorization.

5171666885377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 355622400, while the sum is 70.

The spelling of 5171666885377 in words is "five trillion, one hundred seventy-one billion, six hundred sixty-six million, eight hundred eighty-five thousand, three hundred seventy-seven".