616647667301 has 2 divisors, whose sum is σ = 616647667302. Its totient is φ = 616647667300.

The previous prime is 616647667199. The next prime is 616647667331. The reversal of 616647667301 is 103766746616.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490558759201 + 126088908100 = 700399^2 + 355090^2 .

It is a cyclic number.

It is not a de Polignac number, because 616647667301 - 2²² = 616643472997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616647667331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308323833650 + 308323833651.

It is an arithmetic number, because the mean of its divisors is an integer number (308323833651).

Almost surely, 2^616647667301 is an apocalyptic number.

It is an amenable number.

616647667301 is a deficient number, since it is larger than the sum of its proper divisors (1).

616647667301 is an equidigital number, since it uses as much as digits as its factorization.

616647667301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 616647667301 in words is "six hundred sixteen billion, six hundred forty-seven million, six hundred sixty-seven thousand, three hundred one".