36561205201 has 4 divisors (see below), whose sum is σ = 37339103232. Its totient is φ = 35783307172.

The previous prime is 36561205111. The next prime is 36561205217. The reversal of 36561205201 is 10250216563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36561205201 - 2²³ = 36552816593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36561205001) by changing a digit.

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, 388948945 + ... + 388949038.

It is an arithmetic number, because the mean of its divisors is an integer number (9334775808).

Almost surely, 2^36561205201 is an apocalyptic number.

It is an amenable number.

36561205201 is a deficient number, since it is larger than the sum of its proper divisors (777898031).

36561205201 is an equidigital number, since it uses as much as digits as its factorization.

36561205201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777898030.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 36561205201 in words is "thirty-six billion, five hundred sixty-one million, two hundred five thousand, two hundred one".