41633645161 has 4 divisors (see below), whose sum is σ = 42758878852. Its totient is φ = 40508411472.

The previous prime is 41633645147. The next prime is 41633645197. The reversal of 41633645161 is 16154633614.

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 28983019536 + 12650625625 = 170244^2 + 112475^2 .

It is a cyclic number.

It is not a de Polignac number, because 41633645161 - 2⁵ = 41633645129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41633645461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562616790 + ... + 562616863.

It is an arithmetic number, because the mean of its divisors is an integer number (10689719713).

Almost surely, 2^41633645161 is an apocalyptic number.

It is an amenable number.

41633645161 is a deficient number, since it is larger than the sum of its proper divisors (1125233691).

41633645161 is a wasteful number, since it uses less digits than its factorization.

41633645161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125233690.

The product of its digits is 155520, while the sum is 40.

The spelling of 41633645161 in words is "forty-one billion, six hundred thirty-three million, six hundred forty-five thousand, one hundred sixty-one".