616506246563 has 2 divisors, whose sum is σ = 616506246564. Its totient is φ = 616506246562.

The previous prime is 616506246539. The next prime is 616506246569. The reversal of 616506246563 is 365642605616.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 616506246563 - 2²² = 616502052259 is a prime.

It is not a weakly prime, because it can be changed into another prime (616506246569) 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, 308253123281 + 308253123282.

It is an arithmetic number, because the mean of its divisors is an integer number (308253123282).

Almost surely, 2^616506246563 is an apocalyptic number.

616506246563 is a deficient number, since it is larger than the sum of its proper divisors (1).

616506246563 is an equidigital number, since it uses as much as digits as its factorization.

616506246563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 50.

The spelling of 616506246563 in words is "six hundred sixteen billion, five hundred six million, two hundred forty-six thousand, five hundred sixty-three".