41666666665 has 16 divisors (see below), whose sum is σ = 53853983568. Its totient is φ = 30764756736.

The previous prime is 41666666659. The next prime is 41666666677. The reversal of 41666666665 is 56666666614.

It can be written as a sum of positive squares in 8 ways, for example, as 1904711449 + 39761955216 = 43643^2 + 199404^2 .

It is a cyclic number.

It is not a de Polignac number, because 41666666665 - 2¹¹ = 41666664617 is a prime.

It is a super-2 number, since 2×41666666665² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443139 + ... + 528871.

It is an arithmetic number, because the mean of its divisors is an integer number (3365873973).

Almost surely, 2^41666666665 is an apocalyptic number.

It is an amenable number.

41666666665 is a deficient number, since it is larger than the sum of its proper divisors (12187316903).

41666666665 is a wasteful number, since it uses less digits than its factorization.

41666666665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93228.

The product of its digits is 33592320, while the sum is 58.

The spelling of 41666666665 in words is "forty-one billion, six hundred sixty-six million, six hundred sixty-six thousand, six hundred sixty-five".