41222320537565 has 4 divisors (see below), whose sum is σ = 49466784645084. Its totient is φ = 32977856430048.

The previous prime is 41222320537561. The next prime is 41222320537577. The reversal of 41222320537565 is 56573502322214.

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 28254125642521 + 12968194895044 = 5315461^2 + 3601138^2 .

It is a cyclic number.

It is not a de Polignac number, because 41222320537565 - 2² = 41222320537561 is a prime.

It is a super-2 number, since 2×41222320537565² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41222320537561) 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, 4122232053752 + ... + 4122232053761.

It is an arithmetic number, because the mean of its divisors is an integer number (12366696161271).

Almost surely, 2^{41222320537565} is an apocalyptic number.

It is an amenable number.

41222320537565 is a deficient number, since it is larger than the sum of its proper divisors (8244464107519).

41222320537565 is an equidigital number, since it uses as much as digits as its factorization.

41222320537565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244464107518.

The product of its (nonzero) digits is 3024000, while the sum is 47.

Adding to 41222320537565 its reverse (56573502322214), we get a palindrome (97795822859779).

The spelling of 41222320537565 in words is "forty-one trillion, two hundred twenty-two billion, three hundred twenty million, five hundred thirty-seven thousand, five hundred sixty-five".