2668694201 has 2 divisors, whose sum is σ = 2668694202. Its totient is φ = 2668694200.

The previous prime is 2668694143. The next prime is 2668694207. The reversal of 2668694201 is 1024968662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1394275600 + 1274418601 = 37340^2 + 35699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2668694201 - 2¹⁸ = 2668432057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2668694207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334347100 + 1334347101.

It is an arithmetic number, because the mean of its divisors is an integer number (1334347101).

Almost surely, 2^2668694201 is an apocalyptic number.

It is an amenable number.

2668694201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668694201 is an equidigital number, since it uses as much as digits as its factorization.

2668694201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2668694201 is about 51659.4057360322. The cubic root of 2668694201 is about 1387.0739131132.

The spelling of 2668694201 in words is "two billion, six hundred sixty-eight million, six hundred ninety-four thousand, two hundred one".