663611116366 has 16 divisors (see below), whose sum is σ = 1085935108608. Its totient is φ = 301634191800.

The previous prime is 663611116339. The next prime is 663611116367.

663611116366 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663611116367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639811 + ... + 1317793.

It is an arithmetic number, because the mean of its divisors is an integer number (67870944288).

Almost surely, 2^663611116366 is an apocalyptic number.

663611116366 is a deficient number, since it is larger than the sum of its proper divisors (422323992242).

663611116366 is a wasteful number, since it uses less digits than its factorization.

663611116366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722487.

The product of its digits is 419904, while the sum is 46.

It can be divided in two parts, 663611 and 116366, that added together give a palindrome (779977).

The spelling of 663611116366 in words is "six hundred sixty-three billion, six hundred eleven million, one hundred sixteen thousand, three hundred sixty-six".