41061661 has 4 divisors (see below), whose sum is σ = 41221692. Its totient is φ = 40901632.

The previous prime is 41061653. The next prime is 41061667. The reversal of 41061661 is 16616014.

41061661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40081561 + 980100 = 6331^2 + 990^2 .

It is a cyclic number.

It is not a de Polignac number, because 41061661 - 2³ = 41061653 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 (41061667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79630 + ... + 80143.

It is an arithmetic number, because the mean of its divisors is an integer number (10305423).

Almost surely, 2^41061661 is an apocalyptic number.

It is an amenable number.

41061661 is a deficient number, since it is larger than the sum of its proper divisors (160031).

41061661 is a wasteful number, since it uses less digits than its factorization.

41061661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160030.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 41061661 is about 6407.9373436387. The cubic root of 41061661 is about 344.9944996673.

Adding to 41061661 its reverse (16616014), we get a palindrome (57677675).

The spelling of 41061661 in words is "forty-one million, sixty-one thousand, six hundred sixty-one".