325204665761 has 2 divisors, whose sum is σ = 325204665762. Its totient is φ = 325204665760.

The previous prime is 325204665691. The next prime is 325204665763. The reversal of 325204665761 is 167566402523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311761422736 + 13443243025 = 558356^2 + 115945^2 .

It is a cyclic number.

It is not a de Polignac number, because 325204665761 - 2¹⁴ = 325204649377 is a prime.

Together with 325204665763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325204665763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162602332880 + 162602332881.

It is an arithmetic number, because the mean of its divisors is an integer number (162602332881).

Almost surely, 2^325204665761 is an apocalyptic number.

It is an amenable number.

325204665761 is a deficient number, since it is larger than the sum of its proper divisors (1).

325204665761 is an equidigital number, since it uses as much as digits as its factorization.

325204665761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 325204665761 in words is "three hundred twenty-five billion, two hundred four million, six hundred sixty-five thousand, seven hundred sixty-one".