41663634541 has 16 divisors (see below), whose sum is σ = 43709962240. Its totient is φ = 39664909440.

The previous prime is 41663634539. The next prime is 41663634553. The reversal of 41663634541 is 14543636614.

It is a cyclic number.

It is not a de Polignac number, because 41663634541 - 2¹ = 41663634539 is a prime.

It is a super-3 number, since 3×41663634541³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41663634841) 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 15 ways as a sum of consecutive naturals, for example, 647665 + ... + 709081.

It is an arithmetic number, because the mean of its divisors is an integer number (2731872640).

Almost surely, 2^41663634541 is an apocalyptic number.

It is an amenable number.

41663634541 is a deficient number, since it is larger than the sum of its proper divisors (2046327699).

41663634541 is a wasteful number, since it uses less digits than its factorization.

41663634541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61804.

The product of its digits is 622080, while the sum is 43.

The spelling of 41663634541 in words is "forty-one billion, six hundred sixty-three million, six hundred thirty-four thousand, five hundred forty-one".