616534554677 has 2 divisors, whose sum is σ = 616534554678. Its totient is φ = 616534554676.

The previous prime is 616534554637. The next prime is 616534554719. The reversal of 616534554677 is 776455435616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529807838641 + 86726716036 = 727879^2 + 294494^2 .

It is a cyclic number.

It is not a de Polignac number, because 616534554677 - 2¹⁸ = 616534292533 is a prime.

It is a super-2 number, since 2×616534554677² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (616534554637) 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, 308267277338 + 308267277339.

It is an arithmetic number, because the mean of its divisors is an integer number (308267277339).

Almost surely, 2^616534554677 is an apocalyptic number.

It is an amenable number.

616534554677 is a deficient number, since it is larger than the sum of its proper divisors (1).

616534554677 is an equidigital number, since it uses as much as digits as its factorization.

616534554677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504000, while the sum is 59.

The spelling of 616534554677 in words is "six hundred sixteen billion, five hundred thirty-four million, five hundred fifty-four thousand, six hundred seventy-seven".