325161663641 has 8 divisors (see below), whose sum is σ = 326616282504. Its totient is φ = 323709742720.

The previous prime is 325161663623. The next prime is 325161663647. The reversal of 325161663641 is 146366161523.

It can be written as a sum of positive squares in 4 ways, for example, as 5291107600 + 319870556041 = 72740^2 + 565571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325161663641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 325161663592 and 325161663601.

It is not an unprimeable number, because it can be changed into a prime (325161663647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432710 + ... + 915183.

It is an arithmetic number, because the mean of its divisors is an integer number (40827035313).

Almost surely, 2^325161663641 is an apocalyptic number.

It is an amenable number.

325161663641 is a deficient number, since it is larger than the sum of its proper divisors (1454618863).

325161663641 is a wasteful number, since it uses less digits than its factorization.

325161663641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348971.

The product of its digits is 466560, while the sum is 44.

The spelling of 325161663641 in words is "three hundred twenty-five billion, one hundred sixty-one million, six hundred sixty-three thousand, six hundred forty-one".