41662661 has 2 divisors, whose sum is σ = 41662662. Its totient is φ = 41662660.

The previous prime is 41662651. The next prime is 41662679. The reversal of 41662661 is 16626614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 4330561 = 6110^2 + 2081^2 .

It is a cyclic number.

It is not a de Polignac number, because 41662661 - 2¹⁰ = 41661637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41662651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20831330 + 20831331.

It is an arithmetic number, because the mean of its divisors is an integer number (20831331).

Almost surely, 2^41662661 is an apocalyptic number.

It is an amenable number.

41662661 is a deficient number, since it is larger than the sum of its proper divisors (1).

41662661 is an equidigital number, since it uses as much as digits as its factorization.

41662661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 41662661 is about 6454.6619586156. The cubic root of 41662661 is about 346.6695273227.

The spelling of 41662661 in words is "forty-one million, six hundred sixty-two thousand, six hundred sixty-one".