41108216081 has 2 divisors, whose sum is σ = 41108216082. Its totient is φ = 41108216080.

The previous prime is 41108216077. The next prime is 41108216087. The reversal of 41108216081 is 18061280114.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39368909056 + 1739307025 = 198416^2 + 41705^2 .

It is a cyclic number.

It is not a de Polignac number, because 41108216081 - 2² = 41108216077 is a prime.

It is a super-2 number, since 2×41108216081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (41108216087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20554108040 + 20554108041.

It is an arithmetic number, because the mean of its divisors is an integer number (20554108041).

Almost surely, 2^41108216081 is an apocalyptic number.

It is an amenable number.

41108216081 is a deficient number, since it is larger than the sum of its proper divisors (1).

41108216081 is an equidigital number, since it uses as much as digits as its factorization.

41108216081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 32.

Adding to 41108216081 its reverse (18061280114), we get a palindrome (59169496195).

The spelling of 41108216081 in words is "forty-one billion, one hundred eight million, two hundred sixteen thousand, eighty-one".