36201065521 has 4 divisors (see below), whose sum is σ = 36203298292. Its totient is φ = 36198832752.

The previous prime is 36201065519. The next prime is 36201065561. The reversal of 36201065521 is 12556010263.

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 909685921 + 35291379600 = 30161^2 + 187860^2 .

It is a cyclic number.

It is not a de Polignac number, because 36201065521 - 2¹ = 36201065519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36201065561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091886 + ... + 1124551.

It is an arithmetic number, because the mean of its divisors is an integer number (9050824573).

Almost surely, 2^36201065521 is an apocalyptic number.

It is an amenable number.

36201065521 is a deficient number, since it is larger than the sum of its proper divisors (2232771).

36201065521 is a wasteful number, since it uses less digits than its factorization.

36201065521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232770.

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

Adding to 36201065521 its reverse (12556010263), we get a palindrome (48757075784).

The spelling of 36201065521 in words is "thirty-six billion, two hundred one million, sixty-five thousand, five hundred twenty-one".