1616288697593 has 2 divisors, whose sum is σ = 1616288697594. Its totient is φ = 1616288697592.

The previous prime is 1616288697589. The next prime is 1616288697601. The reversal of 1616288697593 is 3957968826161.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1577867601424 + 38421096169 = 1256132^2 + 196013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616288697593 - 2² = 1616288697589 is a prime.

It is a super-2 number, since 2×1616288697593² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616288691593) 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, 808144348796 + 808144348797.

It is an arithmetic number, because the mean of its divisors is an integer number (808144348797).

Almost surely, 2^{1616288697593} is an apocalyptic number.

It is an amenable number.

1616288697593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616288697593 is an equidigital number, since it uses as much as digits as its factorization.

1616288697593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235146240, while the sum is 71.

The spelling of 1616288697593 in words is "one trillion, six hundred sixteen billion, two hundred eighty-eight million, six hundred ninety-seven thousand, five hundred ninety-three".