2660220859 has 2 divisors, whose sum is σ = 2660220860. Its totient is φ = 2660220858.

The previous prime is 2660220853. The next prime is 2660220869. The reversal of 2660220859 is 9580220662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2660220859 - 2⁹ = 2660220347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2660220853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330110429 + 1330110430.

It is an arithmetic number, because the mean of its divisors is an integer number (1330110430).

Almost surely, 2^2660220859 is an apocalyptic number.

2660220859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660220859 is an equidigital number, since it uses as much as digits as its factorization.

2660220859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 2660220859 is about 51577.3289246351. The cubic root of 2660220859 is about 1385.6043288835.

The spelling of 2660220859 in words is "two billion, six hundred sixty million, two hundred twenty thousand, eight hundred fifty-nine".