663143505341365 has 8 divisors (see below), whose sum is σ = 795812800936608. Its totient is φ = 530487741255120.

The previous prime is 663143505341189. The next prime is 663143505341381. The reversal of 663143505341365 is 563143505341366.

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

It is not a de Polignac number, because 663143505341365 - 2⁴³ = 654347412319157 is a prime.

It is a Duffinian number.

It is a congruent 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, 3382769431 + ... + 3382965460.

It is an arithmetic number, because the mean of its divisors is an integer number (99476600117076).

Almost surely, 2^{663143505341365} is an apocalyptic number.

It is an amenable number.

663143505341365 is a deficient number, since it is larger than the sum of its proper divisors (132669295595243).

663143505341365 is a wasteful number, since it uses less digits than its factorization.

663143505341365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765754499.

The product of its (nonzero) digits is 34992000, while the sum is 55.

Subtracting from 663143505341365 its reverse (563143505341366), we obtain a palindrome (99999999999999).

The spelling of 663143505341365 in words is "six hundred sixty-three trillion, one hundred forty-three billion, five hundred five million, three hundred forty-one thousand, three hundred sixty-five".