41533564221 has 12 divisors (see below), whose sum is σ = 59995178620. Its totient is φ = 27688003200.

The previous prime is 41533564211. The next prime is 41533564301. The reversal of 41533564221 is 12246533514.

41533564221 is a `hidden beast` number, since 4 + 1 + 5 + 3 + 3 + 5 + 642 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9165956121 + 32367608100 = 95739^2 + 179910^2 .

It is not a de Polignac number, because 41533564221 - 2²¹ = 41531467069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41533564211) 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, 225621 + ... + 366021.

Almost surely, 2^41533564221 is an apocalyptic number.

It is an amenable number.

41533564221 is a deficient number, since it is larger than the sum of its proper divisors (18461614399).

41533564221 is a wasteful number, since it uses less digits than its factorization.

41533564221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173276 (or 173273 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 41533564221 in words is "forty-one billion, five hundred thirty-three million, five hundred sixty-four thousand, two hundred twenty-one".