3261567140005 has 4 divisors (see below), whose sum is σ = 3913880568012. Its totient is φ = 2609253712000.

The previous prime is 3261567139969. The next prime is 3261567140033. The reversal of 3261567140005 is 5000417651623.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1537319772769 + 1724247367236 = 1239887^2 + 1313106^2 .

It is not a de Polignac number, because 3261567140005 - 2¹⁷ = 3261567008933 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3261567140005.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 326156713996 + ... + 326156714005.

It is an arithmetic number, because the mean of its divisors is an integer number (978470142003).

Almost surely, 2^{3261567140005} is an apocalyptic number.

It is an amenable number.

3261567140005 is a deficient number, since it is larger than the sum of its proper divisors (652313428007).

3261567140005 is an equidigital number, since it uses as much as digits as its factorization.

3261567140005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652313428006.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 3261567140005 in words is "three trillion, two hundred sixty-one billion, five hundred sixty-seven million, one hundred forty thousand, five".