720066723163 has 2 divisors, whose sum is σ = 720066723164. Its totient is φ = 720066723162.

The previous prime is 720066723091. The next prime is 720066723169. The reversal of 720066723163 is 361327660027.

It is a strong prime.

It is an emirp because it is prime and its reverse (361327660027) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720066723163 is a prime.

It is not a weakly prime, because it can be changed into another prime (720066723169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360033361581 + 360033361582.

It is an arithmetic number, because the mean of its divisors is an integer number (360033361582).

Almost surely, 2^720066723163 is an apocalyptic number.

720066723163 is a deficient number, since it is larger than the sum of its proper divisors (1).

720066723163 is an equidigital number, since it uses as much as digits as its factorization.

720066723163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 43.

The spelling of 720066723163 in words is "seven hundred twenty billion, sixty-six million, seven hundred twenty-three thousand, one hundred sixty-three".