7216616677 has 2 divisors, whose sum is σ = 7216616678. Its totient is φ = 7216616676.

The previous prime is 7216616653. The next prime is 7216616713. The reversal of 7216616677 is 7766166127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6591166596 + 625450081 = 81186^2 + 25009^2 .

It is an emirp because it is prime and its reverse (7766166127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7216616677 - 2³¹ = 5069133029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7216616677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7216616647) 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, 3608308338 + 3608308339.

It is an arithmetic number, because the mean of its divisors is an integer number (3608308339).

Almost surely, 2^7216616677 is an apocalyptic number.

It is an amenable number.

7216616677 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216616677 is an equidigital number, since it uses as much as digits as its factorization.

7216616677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 7216616677 is about 84950.6720220623. The cubic root of 7216616677 is about 1932.4631117250.

The spelling of 7216616677 in words is "seven billion, two hundred sixteen million, six hundred sixteen thousand, six hundred seventy-seven".