663347743366 has 16 divisors (see below), whose sum is σ = 1240546429440. Its totient is φ = 258447172680.

The previous prime is 663347743361. The next prime is 663347743367.

It is a happy number.

663347743366 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 663347743366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663347743361) 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 7 ways as a sum of consecutive naturals, for example, 2153726286 + ... + 2153726593.

It is an arithmetic number, because the mean of its divisors is an integer number (77534151840).

Almost surely, 2^663347743366 is an apocalyptic number.

663347743366 is a deficient number, since it is larger than the sum of its proper divisors (577198686074).

663347743366 is a wasteful number, since it uses less digits than its factorization.

663347743366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307452899.

The product of its digits is 82301184, while the sum is 58.

The spelling of 663347743366 in words is "six hundred sixty-three billion, three hundred forty-seven million, seven hundred forty-three thousand, three hundred sixty-six".