3265168390681 has 8 divisors (see below), whose sum is σ = 3295192890440. Its totient is φ = 3235145142528.

The previous prime is 3265168390643. The next prime is 3265168390741. The reversal of 3265168390681 is 1860938615623.

It can be written as a sum of positive squares in 4 ways, for example, as 628087950400 + 2637080440281 = 792520^2 + 1623909^2 .

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 3265168390681 - 2⁷ = 3265168390553 is a prime.

It is a super-2 number, since 2×3265168390681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3265168390181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5407105 + ... + 5980561.

It is an arithmetic number, because the mean of its divisors is an integer number (411899111305).

Almost surely, 2^{3265168390681} is an apocalyptic number.

It is an amenable number.

3265168390681 is a deficient number, since it is larger than the sum of its proper divisors (30024499759).

3265168390681 is a wasteful number, since it uses less digits than its factorization.

3265168390681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625803.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 3265168390681 in words is "three trillion, two hundred sixty-five billion, one hundred sixty-eight million, three hundred ninety thousand, six hundred eighty-one".