663343575053 has 4 divisors (see below), whose sum is σ = 663431338080. Its totient is φ = 663255812028.

The previous prime is 663343575043. The next prime is 663343575061. The reversal of 663343575053 is 350575343366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 663343575053 - 2¹² = 663343570957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663343574992 and 663343575010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663343575043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43870175 + ... + 43885292.

It is an arithmetic number, because the mean of its divisors is an integer number (165857834520).

Almost surely, 2^663343575053 is an apocalyptic number.

It is an amenable number.

663343575053 is a deficient number, since it is larger than the sum of its proper divisors (87763027).

663343575053 is an equidigital number, since it uses as much as digits as its factorization.

663343575053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87763026.

The product of its (nonzero) digits is 10206000, while the sum is 50.

The spelling of 663343575053 in words is "six hundred sixty-three billion, three hundred forty-three million, five hundred seventy-five thousand, fifty-three".