41661634633 has 2 divisors, whose sum is σ = 41661634634. Its totient is φ = 41661634632.

The previous prime is 41661634631. The next prime is 41661634691. The reversal of 41661634633 is 33643616614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33816635449 + 7844999184 = 183893^2 + 88572^2 .

It is a cyclic number.

It is not a de Polignac number, because 41661634633 - 2¹ = 41661634631 is a prime.

Together with 41661634631, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 41661634633.

It is not a weakly prime, because it can be changed into another prime (41661634631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20830817316 + 20830817317.

It is an arithmetic number, because the mean of its divisors is an integer number (20830817317).

Almost surely, 2^41661634633 is an apocalyptic number.

It is an amenable number.

41661634633 is a deficient number, since it is larger than the sum of its proper divisors (1).

41661634633 is an equidigital number, since it uses as much as digits as its factorization.

41661634633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 43.

The spelling of 41661634633 in words is "forty-one billion, six hundred sixty-one million, six hundred thirty-four thousand, six hundred thirty-three".