663630642042 has 8 divisors (see below), whose sum is σ = 1327261284096. Its totient is φ = 221210214012.

The previous prime is 663630642019. The next prime is 663630642113. The reversal of 663630642042 is 240246036366.

It is a sphenic number, since it is the product of 3 distinct primes.

663630642042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 663630641985 and 663630642003.

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, 55302553498 + ... + 55302553509.

It is an arithmetic number, because the mean of its divisors is an integer number (165907660512).

Almost surely, 2^663630642042 is an apocalyptic number.

663630642042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

663630642042 is a wasteful number, since it uses less digits than its factorization.

663630642042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605107012.

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 663630642042 in words is "six hundred sixty-three billion, six hundred thirty million, six hundred forty-two thousand, forty-two".