5260665065 has 16 divisors (see below), whose sum is σ = 6411344016. Its totient is φ = 4143052800.

The previous prime is 5260664999. The next prime is 5260665101. The reversal of 5260665065 is 5605660625.

It can be written as a sum of positive squares in 8 ways, for example, as 637209049 + 4623456016 = 25243^2 + 67996^2 .

It is not a de Polignac number, because 5260665065 - 2¹⁰ = 5260664041 is a prime.

It is a super-2 number, since 2×5260665065² = 55349193852222908450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184145 + ... + 210785.

It is an arithmetic number, because the mean of its divisors is an integer number (400709001).

Almost surely, 2^5260665065 is an apocalyptic number.

It is an amenable number.

5260665065 is a deficient number, since it is larger than the sum of its proper divisors (1150678951).

5260665065 is a wasteful number, since it uses less digits than its factorization.

5260665065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27260.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 5260665065 is about 72530.4423328577. The cubic root of 5260665065 is about 1739.1894168932.

The spelling of 5260665065 in words is "five billion, two hundred sixty million, six hundred sixty-five thousand, sixty-five".