1616542205713 has 2 divisors, whose sum is σ = 1616542205714. Its totient is φ = 1616542205712.

The previous prime is 1616542205689. The next prime is 1616542205753. The reversal of 1616542205713 is 3175022456161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1612475847889 + 4066357824 = 1269833^2 + 63768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616542205713 is a prime.

It is a super-2 number, since 2×1616542205713² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616542205713.

It is not a weakly prime, because it can be changed into another prime (1616542205753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808271102856 + 808271102857.

It is an arithmetic number, because the mean of its divisors is an integer number (808271102857).

Almost surely, 2^{1616542205713} is an apocalyptic number.

It is an amenable number.

1616542205713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616542205713 is an equidigital number, since it uses as much as digits as its factorization.

1616542205713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 1616542205713 in words is "one trillion, six hundred sixteen billion, five hundred forty-two million, two hundred five thousand, seven hundred thirteen".