3516680866123 has 2 divisors, whose sum is σ = 3516680866124. Its totient is φ = 3516680866122.

The previous prime is 3516680865977. The next prime is 3516680866243. The reversal of 3516680866123 is 3216680866153.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3516680866123 - 2⁹ = 3516680865611 is a prime.

It is a super-2 number, since 2×3516680866123² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3516680863123) 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, 1758340433061 + 1758340433062.

It is an arithmetic number, because the mean of its divisors is an integer number (1758340433062).

Almost surely, 2^{3516680866123} is an apocalyptic number.

3516680866123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3516680866123 is an equidigital number, since it uses as much as digits as its factorization.

3516680866123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 3516680866123 in words is "three trillion, five hundred sixteen billion, six hundred eighty million, eight hundred sixty-six thousand, one hundred twenty-three".