325223656641 has 48 divisors (see below), whose sum is σ = 512202639312. Its totient is φ = 197658316800.

The previous prime is 325223656631. The next prime is 325223656651. The reversal of 325223656641 is 146656322523.

325223656641 is a `hidden beast` number, since 3 + 2 + 52 + 2 + 36 + 566 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (325223656631) and next prime (325223656651).

It can be written as a sum of positive squares in 8 ways, for example, as 64158863616 + 261064793025 = 253296^2 + 510945^2 .

It is not a de Polignac number, because 325223656641 - 2¹⁴ = 325223640257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (325223656631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3671331 + ... + 3758871.

It is an arithmetic number, because the mean of its divisors is an integer number (10670888319).

Almost surely, 2^325223656641 is an apocalyptic number.

It is an amenable number.

325223656641 is a deficient number, since it is larger than the sum of its proper divisors (186978982671).

325223656641 is a wasteful number, since it uses less digits than its factorization.

325223656641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87954 (or 87951 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 325223656641 in words is "three hundred twenty-five billion, two hundred twenty-three million, six hundred fifty-six thousand, six hundred forty-one".