2660943907 has 2 divisors, whose sum is σ = 2660943908. Its totient is φ = 2660943906.

The previous prime is 2660943821. The next prime is 2660943949. The reversal of 2660943907 is 7093490662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2660943907 - 2²³ = 2652555299 is a prime.

It is not a weakly prime, because it can be changed into another prime (2660143907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1330471953 + 1330471954.

It is an arithmetic number, because the mean of its divisors is an integer number (1330471954).

Almost surely, 2^2660943907 is an apocalyptic number.

2660943907 is a deficient number, since it is larger than the sum of its proper divisors (1).

2660943907 is an equidigital number, since it uses as much as digits as its factorization.

2660943907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 2660943907 is about 51584.3378071290. The cubic root of 2660943907 is about 1385.7298532588.

The spelling of 2660943907 in words is "two billion, six hundred sixty million, nine hundred forty-three thousand, nine hundred seven".