663313107188 has 24 divisors (see below), whose sum is σ = 1189217415624. Its totient is φ = 323538163200.

The previous prime is 663313107181. The next prime is 663313107209. The reversal of 663313107188 is 881701313366.

It can be written as a sum of positive squares in 4 ways, for example, as 93677620624 + 569635486564 = 306068^2 + 754742^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663313107181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1698848 + ... + 2052488.

It is an arithmetic number, because the mean of its divisors is an integer number (49550725651).

Almost surely, 2^663313107188 is an apocalyptic number.

It is an amenable number.

663313107188 is a deficient number, since it is larger than the sum of its proper divisors (525904308436).

663313107188 is a wasteful number, since it uses less digits than its factorization.

663313107188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365123 (or 365121 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 663313107188 in words is "six hundred sixty-three billion, three hundred thirteen million, one hundred seven thousand, one hundred eighty-eight".