5160660665 has 8 divisors (see below), whose sum is σ = 6193606920. Its totient is φ = 4127985792.

The previous prime is 5160660643. The next prime is 5160660679. The reversal of 5160660665 is 5660660615.

It can be written as a sum of positive squares in 4 ways, for example, as 720170896 + 4440489769 = 26836^2 + 66637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5160660665 - 2⁶ = 5160660601 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23354 + ... + 104243.

It is an arithmetic number, because the mean of its divisors is an integer number (774200865).

Almost surely, 2^5160660665 is an apocalyptic number.

It is an amenable number.

5160660665 is a deficient number, since it is larger than the sum of its proper divisors (1032946255).

5160660665 is a wasteful number, since it uses less digits than its factorization.

5160660665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135691.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 5160660665 is about 71837.7384457501. The cubic root of 5160660665 is about 1728.0982660926.

The spelling of 5160660665 in words is "five billion, one hundred sixty million, six hundred sixty thousand, six hundred sixty-five".