3612840165617 has 2 divisors, whose sum is σ = 3612840165618. Its totient is φ = 3612840165616.

The previous prime is 3612840165601. The next prime is 3612840165713. The reversal of 3612840165617 is 7165610482163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3206764073536 + 406076092081 = 1790744^2 + 637241^2 .

It is a cyclic number.

It is not a de Polignac number, because 3612840165617 - 2⁴ = 3612840165601 is a prime.

It is a super-2 number, since 2×3612840165617² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3612840165017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806420082808 + 1806420082809.

It is an arithmetic number, because the mean of its divisors is an integer number (1806420082809).

Almost surely, 2^{3612840165617} is an apocalyptic number.

It is an amenable number.

3612840165617 is a deficient number, since it is larger than the sum of its proper divisors (1).

3612840165617 is an equidigital number, since it uses as much as digits as its factorization.

3612840165617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 3612840165617 in words is "three trillion, six hundred twelve billion, eight hundred forty million, one hundred sixty-five thousand, six hundred seventeen".