325316410556161 has 2 divisors, whose sum is σ = 325316410556162. Its totient is φ = 325316410556160.

The previous prime is 325316410556147. The next prime is 325316410556191. The reversal of 325316410556161 is 161655014613523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293049239179761 + 32267171376400 = 17118681^2 + 5680420^2 .

It is an emirp because it is prime and its reverse (161655014613523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325316410556161 - 2²⁷ = 325316276338433 is a prime.

It is a super-2 number, since 2×325316410556161² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (325316410556191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162658205278080 + 162658205278081.

It is an arithmetic number, because the mean of its divisors is an integer number (162658205278081).

Almost surely, 2^{325316410556161} is an apocalyptic number.

It is an amenable number.

325316410556161 is a deficient number, since it is larger than the sum of its proper divisors (1).

325316410556161 is an equidigital number, since it uses as much as digits as its factorization.

325316410556161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 325316410556161 in words is "three hundred twenty-five trillion, three hundred sixteen billion, four hundred ten million, five hundred fifty-six thousand, one hundred sixty-one".