663475848574366 has 32 divisors (see below), whose sum is σ = 1051684540220160. Its totient is φ = 313050739562496.

The previous prime is 663475848574291. The next prime is 663475848574373.

663475848574366 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 663475848574366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751179295 + ... + 752062021.

It is an arithmetic number, because the mean of its divisors is an integer number (32865141881880).

Almost surely, 2^{663475848574366} is an apocalyptic number.

663475848574366 is a deficient number, since it is larger than the sum of its proper divisors (388208691645794).

663475848574366 is a wasteful number, since it uses less digits than its factorization.

663475848574366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959968.

The product of its digits is 58525286400, while the sum is 82.

The spelling of 663475848574366 in words is "six hundred sixty-three trillion, four hundred seventy-five billion, eight hundred forty-eight million, five hundred seventy-four thousand, three hundred sixty-six".