5166115609 has 2 divisors, whose sum is σ = 5166115610. Its totient is φ = 5166115608.

The previous prime is 5166115553. The next prime is 5166115673. The reversal of 5166115609 is 9065116615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4698691209 + 467424400 = 68547^2 + 21620^2 .

It is a cyclic number.

It is not a de Polignac number, because 5166115609 - 2²⁵ = 5132561177 is a prime.

It is not a weakly prime, because it can be changed into another prime (5166115109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583057804 + 2583057805.

It is an arithmetic number, because the mean of its divisors is an integer number (2583057805).

Almost surely, 2^5166115609 is an apocalyptic number.

It is an amenable number.

5166115609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166115609 is an equidigital number, since it uses as much as digits as its factorization.

5166115609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 5166115609 is about 71875.6955375042. The cubic root of 5166115609 is about 1728.7069323351.

The spelling of 5166115609 in words is "five billion, one hundred sixty-six million, one hundred fifteen thousand, six hundred nine".