6660220060723 has 2 divisors, whose sum is σ = 6660220060724. Its totient is φ = 6660220060722.

The previous prime is 6660220060667. The next prime is 6660220060757. The reversal of 6660220060723 is 3270600220666.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6660220060723 is a prime.

It is not a weakly prime, because it can be changed into another prime (6660220010723) 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, 3330110030361 + 3330110030362.

It is an arithmetic number, because the mean of its divisors is an integer number (3330110030362).

Almost surely, 2^{6660220060723} is an apocalyptic number.

6660220060723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6660220060723 is an equidigital number, since it uses as much as digits as its factorization.

6660220060723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 6660220060723 in words is "six trillion, six hundred sixty billion, two hundred twenty million, sixty thousand, seven hundred twenty-three".