41606722647221 has 8 divisors (see below), whose sum is σ = 41838955990104. Its totient is φ = 41374515260160.

The previous prime is 41606722647173. The next prime is 41606722647293. The reversal of 41606722647221 is 12274622760614.

It can be written as a sum of positive squares in 4 ways, for example, as 2927900854321 + 38678821792900 = 1711111^2 + 6219230^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 41606722647221 - 2³⁴ = 41589542778037 is a prime.

It is a super-2 number, since 2×41606722647221² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 41606722647221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41606722649221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3269600 + ... + 9690393.

It is an arithmetic number, because the mean of its divisors is an integer number (5229869498763).

Almost surely, 2^{41606722647221} is an apocalyptic number.

It is an amenable number.

41606722647221 is a deficient number, since it is larger than the sum of its proper divisors (232233342883).

41606722647221 is a wasteful number, since it uses less digits than its factorization.

41606722647221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12977911.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 41606722647221 in words is "forty-one trillion, six hundred six billion, seven hundred twenty-two million, six hundred forty-seven thousand, two hundred twenty-one".