2668630333 has 2 divisors, whose sum is σ = 2668630334. Its totient is φ = 2668630332.

The previous prime is 2668630241. The next prime is 2668630337. The reversal of 2668630333 is 3330368662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2392970724 + 275659609 = 48918^2 + 16603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2668630333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2668630337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1334315166 + 1334315167.

It is an arithmetic number, because the mean of its divisors is an integer number (1334315167).

Almost surely, 2^2668630333 is an apocalyptic number.

It is an amenable number.

2668630333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2668630333 is an equidigital number, since it uses as much as digits as its factorization.

2668630333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 40.

The square root of 2668630333 is about 51658.7875680411. The cubic root of 2668630333 is about 1387.0628477335.

Adding to 2668630333 its reverse (3330368662), we get a palindrome (5998998995).

The spelling of 2668630333 in words is "two billion, six hundred sixty-eight million, six hundred thirty thousand, three hundred thirty-three".