325201641601 has 4 divisors (see below), whose sum is σ = 325334868804. Its totient is φ = 325068414400.

The previous prime is 325201641547. The next prime is 325201641617. The reversal of 325201641601 is 106146102523.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106146102523 = 314117 ⋅337919.

It can be written as a sum of positive squares in 2 ways, for example, as 100013430001 + 225188211600 = 316249^2 + 474540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325201641601 is a prime.

It is a super-2 number, since 2×325201641601² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325201641671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66609940 + ... + 66614821.

It is an arithmetic number, because the mean of its divisors is an integer number (81333717201).

Almost surely, 2^325201641601 is an apocalyptic number.

It is an amenable number.

325201641601 is a deficient number, since it is larger than the sum of its proper divisors (133227203).

325201641601 is a wasteful number, since it uses less digits than its factorization.

325201641601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133227202.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 325201641601 in words is "three hundred twenty-five billion, two hundred one million, six hundred forty-one thousand, six hundred one".