5166600065987 has 2 divisors, whose sum is σ = 5166600065988. Its totient is φ = 5166600065986.

The previous prime is 5166600065983. The next prime is 5166600066011. The reversal of 5166600065987 is 7895600066615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5166600065987 - 2² = 5166600065983 is a prime.

It is not a weakly prime, because it can be changed into another prime (5166600065983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583300032993 + 2583300032994.

It is an arithmetic number, because the mean of its divisors is an integer number (2583300032994).

Almost surely, 2^{5166600065987} is an apocalyptic number.

5166600065987 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166600065987 is an equidigital number, since it uses as much as digits as its factorization.

5166600065987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 5166600065987 in words is "five trillion, one hundred sixty-six billion, six hundred million, sixty-five thousand, nine hundred eighty-seven".