663361505163366 has 16 divisors (see below), whose sum is σ = 1328930536141488. Its totient is φ = 220752580752000.

The previous prime is 663361505163347. The next prime is 663361505163389.

663361505163366 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 7 ways as a sum of consecutive naturals, for example, 91980238375 + ... + 91980245586.

It is an arithmetic number, because the mean of its divisors is an integer number (83058158508843).

Almost surely, 2^{663361505163366} is an apocalyptic number.

663361505163366 is an abundant number, since it is smaller than the sum of its proper divisors (665569030978122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663361505163366 is a wasteful number, since it uses less digits than its factorization.

663361505163366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183960484567.

The product of its (nonzero) digits is 94478400, while the sum is 60.

The spelling of 663361505163366 in words is "six hundred sixty-three trillion, three hundred sixty-one billion, five hundred five million, one hundred sixty-three thousand, three hundred sixty-six".