663133507883256 has 128 divisors (see below), whose sum is σ = 1727038772697600. Its totient is φ = 211989853877760.

The previous prime is 663133507883177. The next prime is 663133507883279. The reversal of 663133507883256 is 652388705331366.

It is a happy number.

663133507883256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259685086 + ... + 262226258.

It is an arithmetic number, because the mean of its divisors is an integer number (13492490411700).

Almost surely, 2^{663133507883256} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663133507883256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (863519386348800).

663133507883256 is an abundant number, since it is smaller than the sum of its proper divisors (1063905264814344).

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

663133507883256 is a wasteful number, since it uses less digits than its factorization.

663133507883256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545429 (or 2545425 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 66.

The spelling of 663133507883256 in words is "six hundred sixty-three trillion, one hundred thirty-three billion, five hundred seven million, eight hundred eighty-three thousand, two hundred fifty-six".