6650973911 has 2 divisors, whose sum is σ = 6650973912. Its totient is φ = 6650973910.

The previous prime is 6650973893. The next prime is 6650973913. The reversal of 6650973911 is 1193790566.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6650973911 is a prime.

Together with 6650973913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6650973913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3325486955 + 3325486956.

It is an arithmetic number, because the mean of its divisors is an integer number (3325486956).

Almost surely, 2^6650973911 is an apocalyptic number.

6650973911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650973911 is an equidigital number, since it uses as much as digits as its factorization.

6650973911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 6650973911 is about 81553.5033643558. The cubic root of 6650973911 is about 1880.5941526871.

The spelling of 6650973911 in words is "six billion, six hundred fifty million, nine hundred seventy-three thousand, nine hundred eleven".