41158647665 has 16 divisors (see below), whose sum is σ = 49506601680. Its totient is φ = 32849510400.

The previous prime is 41158647661. The next prime is 41158647667. The reversal of 41158647665 is 56674685114.

It can be written as a sum of positive squares in 8 ways, for example, as 425720689 + 40732926976 = 20633^2 + 201824^2 .

It is not a de Polignac number, because 41158647665 - 2² = 41158647661 is a prime.

It is a super-2 number, since 2×41158647665² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41158647661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6138815 + ... + 6145515.

It is an arithmetic number, because the mean of its divisors is an integer number (3094162605).

Almost surely, 2^41158647665 is an apocalyptic number.

It is an amenable number.

41158647665 is a deficient number, since it is larger than the sum of its proper divisors (8347954015).

41158647665 is a wasteful number, since it uses less digits than its factorization.

41158647665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9412.

The product of its digits is 4838400, while the sum is 53.

The spelling of 41158647665 in words is "forty-one billion, one hundred fifty-eight million, six hundred forty-seven thousand, six hundred sixty-five".