27001236616201 has 4 divisors (see below), whose sum is σ = 27001322982292. Its totient is φ = 27001150250112.

The previous prime is 27001236616187. The next prime is 27001236616247. The reversal of 27001236616201 is 10261663210072.

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 20924000924176 + 6077235692025 = 4574276^2 + 2465205^2 .

It is a cyclic number.

It is not a de Polignac number, because 27001236616201 - 2²⁹ = 27000699745289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27001236614201) 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 3 ways as a sum of consecutive naturals, for example, 42712380 + ... + 43339933.

It is an arithmetic number, because the mean of its divisors is an integer number (6750330745573).

Almost surely, 2^{27001236616201} is an apocalyptic number.

It is an amenable number.

27001236616201 is a deficient number, since it is larger than the sum of its proper divisors (86366091).

27001236616201 is an equidigital number, since it uses as much as digits as its factorization.

27001236616201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86366090.

The product of its (nonzero) digits is 36288, while the sum is 37.

Adding to 27001236616201 its reverse (10261663210072), we get a palindrome (37262899826273).

The spelling of 27001236616201 in words is "twenty-seven trillion, one billion, two hundred thirty-six million, six hundred sixteen thousand, two hundred one".