2666859361 has 16 divisors (see below), whose sum is σ = 2937306240. Its totient is φ = 2410024320.

The previous prime is 2666859319. The next prime is 2666859367. The reversal of 2666859361 is 1639586662.

It is a cyclic number.

It is not a de Polignac number, because 2666859361 - 2¹³ = 2666851169 is a prime.

It is a super-2 number, since 2×2666859361² = 14224277702706656642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2666859299 and 2666859308.

It is not an unprimeable number, because it can be changed into a prime (2666859367) by changing a digit.

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, 154821 + ... + 171181.

It is an arithmetic number, because the mean of its divisors is an integer number (183581640).

Almost surely, 2^2666859361 is an apocalyptic number.

It is an amenable number.

2666859361 is a deficient number, since it is larger than the sum of its proper divisors (270446879).

2666859361 is a wasteful number, since it uses less digits than its factorization.

2666859361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16776.

The product of its digits is 2799360, while the sum is 52.

The square root of 2666859361 is about 51641.6436705882. The cubic root of 2666859361 is about 1386.7559495939.

The spelling of 2666859361 in words is "two billion, six hundred sixty-six million, eight hundred fifty-nine thousand, three hundred sixty-one".