41662548665 has 4 divisors (see below), whose sum is σ = 49995058404. Its totient is φ = 33330038928.

The previous prime is 41662548649. The next prime is 41662548691. The reversal of 41662548665 is 56684526614.

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 10692180409 + 30970368256 = 103403^2 + 175984^2 .

It is a cyclic number.

It is not a de Polignac number, because 41662548665 - 2⁴ = 41662548649 is a prime.

It is a super-2 number, since 2×41662548665² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4166254862 + ... + 4166254871.

It is an arithmetic number, because the mean of its divisors is an integer number (12498764601).

Almost surely, 2^41662548665 is an apocalyptic number.

It is an amenable number.

41662548665 is a deficient number, since it is larger than the sum of its proper divisors (8332509739).

41662548665 is an equidigital number, since it uses as much as digits as its factorization.

41662548665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332509738.

The product of its digits is 8294400, while the sum is 53.

The spelling of 41662548665 in words is "forty-one billion, six hundred sixty-two million, five hundred forty-eight thousand, six hundred sixty-five".