6536337700221 has 12 divisors (see below), whose sum is σ = 10790144775072. Its totient is φ = 3735050114376.

The previous prime is 6536337700219. The next prime is 6536337700229. The reversal of 6536337700221 is 1220077336356.

6536337700221 is a `hidden beast` number, since 6 + 5 + 3 + 633 + 7 + 7 + 0 + 0 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 6536337700221 - 2¹ = 6536337700219 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6536337700229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51875695971 + ... + 51875696096.

It is an arithmetic number, because the mean of its divisors is an integer number (899178731256).

Almost surely, 2^{6536337700221} is an apocalyptic number.

It is an amenable number.

6536337700221 is a deficient number, since it is larger than the sum of its proper divisors (4253807074851).

6536337700221 is a wasteful number, since it uses less digits than its factorization.

6536337700221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103751392080 (or 103751392077 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 45.

The spelling of 6536337700221 in words is "six trillion, five hundred thirty-six billion, three hundred thirty-seven million, seven hundred thousand, two hundred twenty-one".