663776046068 has 24 divisors (see below), whose sum is σ = 1227066042720. Its totient is φ = 313309196640.

The previous prime is 663776046067. The next prime is 663776046071. The reversal of 663776046068 is 860640677366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 663776045998 and 663776046016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663776046067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15409403 + ... + 15452418.

It is an arithmetic number, because the mean of its divisors is an integer number (51127751780).

Almost surely, 2^663776046068 is an apocalyptic number.

It is an amenable number.

663776046068 is a deficient number, since it is larger than the sum of its proper divisors (563289996652).

663776046068 is a wasteful number, since it uses less digits than its factorization.

663776046068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30862127 (or 30862125 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 59.

The spelling of 663776046068 in words is "six hundred sixty-three billion, seven hundred seventy-six million, forty-six thousand, sixty-eight".