663504240136456 has 16 divisors (see below), whose sum is σ = 1265156390091600. Its totient is φ = 326129202778704.

The previous prime is 663504240136411. The next prime is 663504240136489. The reversal of 663504240136456 is 654631042405366.

It is a junction number, because it is equal to n+sod(n) for n = 663504240136397 and 663504240136406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702864660690 + ... + 702864661633.

It is an arithmetic number, because the mean of its divisors is an integer number (79072274380725).

Almost surely, 2^{663504240136456} is an apocalyptic number.

It is an amenable number.

663504240136456 is a deficient number, since it is larger than the sum of its proper divisors (601652149955144).

663504240136456 is a wasteful number, since it uses less digits than its factorization.

663504240136456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405729322388 (or 1405729322384 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 663504240136456 in words is "six hundred sixty-three trillion, five hundred four billion, two hundred forty million, one hundred thirty-six thousand, four hundred fifty-six".