7217166364043 has 2 divisors, whose sum is σ = 7217166364044. Its totient is φ = 7217166364042.

The previous prime is 7217166364033. The next prime is 7217166364069. The reversal of 7217166364043 is 3404636617127.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3404636617127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7217166364043 - 2¹⁰ = 7217166363019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7217166363982 and 7217166364000.

It is not a weakly prime, because it can be changed into another prime (7217166364033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608583182021 + 3608583182022.

It is an arithmetic number, because the mean of its divisors is an integer number (3608583182022).

Almost surely, 2^{7217166364043} is an apocalyptic number.

7217166364043 is a deficient number, since it is larger than the sum of its proper divisors (1).

7217166364043 is an equidigital number, since it uses as much as digits as its factorization.

7217166364043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 50.

The spelling of 7217166364043 in words is "seven trillion, two hundred seventeen billion, one hundred sixty-six million, three hundred sixty-four thousand, forty-three".