41721044165 has 8 divisors (see below), whose sum is σ = 50354648568. Its totient is φ = 33183904960.

The previous prime is 41721044159. The next prime is 41721044191. The reversal of 41721044165 is 56144012714.

41721044165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23963349601 + 17757694564 = 154801^2 + 133258^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41721044165 - 2¹⁰ = 41721043141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24115346 + ... + 24117075.

It is an arithmetic number, because the mean of its divisors is an integer number (6294331071).

Almost surely, 2^41721044165 is an apocalyptic number.

It is an amenable number.

41721044165 is a deficient number, since it is larger than the sum of its proper divisors (8633604403).

41721044165 is a wasteful number, since it uses less digits than its factorization.

41721044165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48232599.

The product of its (nonzero) digits is 26880, while the sum is 35.

Adding to 41721044165 its reverse (56144012714), we get a palindrome (97865056879).

The spelling of 41721044165 in words is "forty-one billion, seven hundred twenty-one million, forty-four thousand, one hundred sixty-five".