3261340165 has 8 divisors (see below), whose sum is σ = 3960760608. Its totient is φ = 2577637200.

The previous prime is 3261340133. The next prime is 3261340183. The reversal of 3261340165 is 5610431623.

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

It is not a de Polignac number, because 3261340165 - 2⁵ = 3261340133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3928911 + ... + 3929740.

It is an arithmetic number, because the mean of its divisors is an integer number (495095076).

Almost surely, 2^3261340165 is an apocalyptic number.

It is an amenable number.

3261340165 is a deficient number, since it is larger than the sum of its proper divisors (699420443).

3261340165 is an equidigital number, since it uses as much as digits as its factorization.

3261340165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7858739.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 3261340165 is about 57108.1444716951. The cubic root of 3261340165 is about 1482.9688647387.

Adding to 3261340165 its reverse (5610431623), we get a palindrome (8871771788).

The spelling of 3261340165 in words is "three billion, two hundred sixty-one million, three hundred forty thousand, one hundred sixty-five".