41205543136465 has 8 divisors (see below), whose sum is σ = 49702852033128. Its totient is φ = 32793634329600.

The previous prime is 41205543136453. The next prime is 41205543136487. The reversal of 41205543136465 is 56463134550214.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 203458732096 + 41002084404369 = 451064^2 + 6403287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41205543136465 - 2⁷ = 41205543136337 is a prime.

It is a super-2 number, since 2×41205543136465² (a number of 28 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 7 ways as a sum of consecutive naturals, for example, 21350021386 + ... + 21350023315.

It is an arithmetic number, because the mean of its divisors is an integer number (6212856504141).

Almost surely, 2^{41205543136465} is an apocalyptic number.

It is an amenable number.

41205543136465 is a deficient number, since it is larger than the sum of its proper divisors (8497308896663).

41205543136465 is a wasteful number, since it uses less digits than its factorization.

41205543136465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42700044899.

The product of its (nonzero) digits is 5184000, while the sum is 49.

Adding to 41205543136465 its reverse (56463134550214), we get a palindrome (97668677686679).

The spelling of 41205543136465 in words is "forty-one trillion, two hundred five billion, five hundred forty-three million, one hundred thirty-six thousand, four hundred sixty-five".