663143505341366 has 12 divisors (see below), whose sum is σ = 1157117749116228. Its totient is φ = 284204359431972.

The previous prime is 663143505341189. The next prime is 663143505341381.

663143505341366 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3383385231236 + ... + 3383385231431.

It is an arithmetic number, because the mean of its divisors is an integer number (96426479093019).

Almost surely, 2^{663143505341366} is an apocalyptic number.

663143505341366 is a deficient number, since it is larger than the sum of its proper divisors (493974243774862).

663143505341366 is a wasteful number, since it uses less digits than its factorization.

663143505341366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766770462683 (or 6766770462676 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 56.

The spelling of 663143505341366 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-six".