2668005611 has 2 divisors, whose sum is σ = 2668005612. Its totient is φ = 2668005610.

The previous prime is 2668005577. The next prime is 2668005689. The reversal of 2668005611 is 1165008662.

It is a happy number.

2668005611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2668005611 is a prime.

It is not a weakly prime, because it can be changed into another prime (2668005811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334002805 + 1334002806.

It is an arithmetic number, because the mean of its divisors is an integer number (1334002806).

Almost surely, 2^2668005611 is an apocalyptic number.

2668005611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668005611 is an equidigital number, since it uses as much as digits as its factorization.

2668005611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2668005611 is about 51652.7405952482. The cubic root of 2668005611 is about 1386.9546029045.

The spelling of 2668005611 in words is "two billion, six hundred sixty-eight million, five thousand, six hundred eleven".