325640128061 has 8 divisors (see below), whose sum is σ = 332945318784. Its totient is φ = 318350632320.

The previous prime is 325640128003. The next prime is 325640128103. The reversal of 325640128061 is 160821046523.

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

It is a cyclic number.

It is not a de Polignac number, because 325640128061 - 2¹⁸ = 325639865917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325640128861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3881780 + ... + 3964781.

It is an arithmetic number, because the mean of its divisors is an integer number (41618164848).

Almost surely, 2^325640128061 is an apocalyptic number.

It is an amenable number.

325640128061 is a deficient number, since it is larger than the sum of its proper divisors (7305190723).

325640128061 is an equidigital number, since it uses as much as digits as its factorization.

325640128061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847491.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 325640128061 in words is "three hundred twenty-five billion, six hundred forty million, one hundred twenty-eight thousand, sixty-one".