663538740042 has 8 divisors (see below), whose sum is σ = 1327077480096. Its totient is φ = 221179580012.

The previous prime is 663538740019. The next prime is 663538740083. The reversal of 663538740042 is 240047835366.

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

663538740042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 663538739973 and 663538740000.

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, 55294894998 + ... + 55294895009.

It is an arithmetic number, because the mean of its divisors is an integer number (165884685012).

Almost surely, 2^663538740042 is an apocalyptic number.

663538740042 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.

663538740042 is a wasteful number, since it uses less digits than its factorization.

663538740042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110589790012.

The product of its (nonzero) digits is 2903040, while the sum is 48.

The spelling of 663538740042 in words is "six hundred sixty-three billion, five hundred thirty-eight million, seven hundred forty thousand, forty-two".