5816662544261 has 2 divisors, whose sum is σ = 5816662544262. Its totient is φ = 5816662544260.

The previous prime is 5816662544243. The next prime is 5816662544281. The reversal of 5816662544261 is 1624452666185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4762734452161 + 1053928092100 = 2182369^2 + 1026610^2 .

It is a cyclic number.

It is not a de Polignac number, because 5816662544261 - 2¹⁸ = 5816662282117 is a prime.

It is a super-2 number, since 2×5816662544261² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5816662544197 and 5816662544206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5816662544221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2908331272130 + 2908331272131.

It is an arithmetic number, because the mean of its divisors is an integer number (2908331272131).

Almost surely, 2^{5816662544261} is an apocalyptic number.

It is an amenable number.

5816662544261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5816662544261 is an equidigital number, since it uses as much as digits as its factorization.

5816662544261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16588800, while the sum is 56.

The spelling of 5816662544261 in words is "five trillion, eight hundred sixteen billion, six hundred sixty-two million, five hundred forty-four thousand, two hundred sixty-one".