5165551616677 has 2 divisors, whose sum is σ = 5165551616678. Its totient is φ = 5165551616676.

The previous prime is 5165551616671. The next prime is 5165551616777. The reversal of 5165551616677 is 7766161555615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5107898324356 + 57653292321 = 2260066^2 + 240111^2 .

It is a cyclic number.

It is not a de Polignac number, because 5165551616677 - 2⁷ = 5165551616549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5165551616671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2582775808338 + 2582775808339.

It is an arithmetic number, because the mean of its divisors is an integer number (2582775808339).

Almost surely, 2^{5165551616677} is an apocalyptic number.

It is an amenable number.

5165551616677 is a deficient number, since it is larger than the sum of its proper divisors (1).

5165551616677 is an equidigital number, since it uses as much as digits as its factorization.

5165551616677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39690000, while the sum is 61.

The spelling of 5165551616677 in words is "five trillion, one hundred sixty-five billion, five hundred fifty-one million, six hundred sixteen thousand, six hundred seventy-seven".