325606043161 has 9 divisors (see below), whose sum is σ = 378770859999. Its totient is φ = 279087470424.

The previous prime is 325606043131. The next prime is 325606043167. The reversal of 325606043161 is 161340606523.

The square root of 325606043161 is 570619.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4973775625 + 320632267536 = 70525^2 + 566244^2 .

It is not a de Polignac number, because 325606043161 - 2⁵ = 325606043129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 325606043161.

It is not an unprimeable number, because it can be changed into a prime (325606043167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3953575 + ... + 4035091.

It is an arithmetic number, because the mean of its divisors is an integer number (42085651111).

Almost surely, 2^325606043161 is an apocalyptic number.

325606043161 is the 570619-th square number.

325606043161 is the 285310-th centered octagonal number.

It is an amenable number.

325606043161 is a deficient number, since it is larger than the sum of its proper divisors (53164816838).

325606043161 is an frugal number, since it uses more digits than its factorization.

325606043161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163048 (or 81524 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 325606043161 its reverse (161340606523), we get a palindrome (486946649684).

The spelling of 325606043161 in words is "three hundred twenty-five billion, six hundred six million, forty-three thousand, one hundred sixty-one".