41565534543121 has 8 divisors (see below), whose sum is σ = 44464283163720. Its totient is φ = 38717198942208.

The previous prime is 41565534543119. The next prime is 41565534543161. The reversal of 41565534543121 is 12134543556514.

It can be written as a sum of positive squares in 4 ways, for example, as 2588675052096 + 38976859491025 = 1608936^2 + 6243145^2 .

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 41565534543121 - 2¹ = 41565534543119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41565534543161) 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, 12603253216 + ... + 12603256513.

It is an arithmetic number, because the mean of its divisors is an integer number (5558035395465).

Almost surely, 2^{41565534543121} is an apocalyptic number.

It is an amenable number.

41565534543121 is a deficient number, since it is larger than the sum of its proper divisors (2898748620599).

41565534543121 is a wasteful number, since it uses less digits than its factorization.

41565534543121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25206509843.

The product of its digits is 4320000, while the sum is 49.

The spelling of 41565534543121 in words is "forty-one trillion, five hundred sixty-five billion, five hundred thirty-four million, five hundred forty-three thousand, one hundred twenty-one".