7666632913 has 2 divisors, whose sum is σ = 7666632914. Its totient is φ = 7666632912.

The previous prime is 7666632863. The next prime is 7666633001. The reversal of 7666632913 is 3192366667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7205972544 + 460660369 = 84888^2 + 21463^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7666632913 is a prime.

It is not a weakly prime, because it can be changed into another prime (7666632313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833316456 + 3833316457.

It is an arithmetic number, because the mean of its divisors is an integer number (3833316457).

Almost surely, 2^7666632913 is an apocalyptic number.

It is an amenable number.

7666632913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666632913 is an equidigital number, since it uses as much as digits as its factorization.

7666632913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 49.

The square root of 7666632913 is about 87559.3108298598. The cubic root of 7666632913 is about 1971.8243394728.

The spelling of 7666632913 in words is "seven billion, six hundred sixty-six million, six hundred thirty-two thousand, nine hundred thirteen".