5616609008761 has 2 divisors, whose sum is σ = 5616609008762. Its totient is φ = 5616609008760.

The previous prime is 5616609008749. The next prime is 5616609008767. The reversal of 5616609008761 is 1678009066165.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5590387360000 + 26221648761 = 2364400^2 + 161931^2 .

It is a cyclic number.

It is not a de Polignac number, because 5616609008761 - 2¹⁷ = 5616608877689 is a prime.

It is not a weakly prime, because it can be changed into another prime (5616609008767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2808304504380 + 2808304504381.

It is an arithmetic number, because the mean of its divisors is an integer number (2808304504381).

Almost surely, 2^{5616609008761} is an apocalyptic number.

It is an amenable number.

5616609008761 is a deficient number, since it is larger than the sum of its proper divisors (1).

5616609008761 is an equidigital number, since it uses as much as digits as its factorization.

5616609008761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 5616609008761 in words is "five trillion, six hundred sixteen billion, six hundred nine million, eight thousand, seven hundred sixty-one".