663466042 has 4 divisors (see below), whose sum is σ = 995199066. Its totient is φ = 331733020.

The previous prime is 663466039. The next prime is 663466081. The reversal of 663466042 is 240664366.

663466042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 635997961 + 27468081 = 25219^2 + 5241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 663465992 and 663466010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165866509 + ... + 165866512.

Almost surely, 2^663466042 is an apocalyptic number.

663466042 is a deficient number, since it is larger than the sum of its proper divisors (331733024).

663466042 is a wasteful number, since it uses less digits than its factorization.

663466042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331733023.

The product of its (nonzero) digits is 124416, while the sum is 37.

The square root of 663466042 is about 25757.8345751346. The cubic root of 663466042 is about 872.1802199189.

The spelling of 663466042 in words is "six hundred sixty-three million, four hundred sixty-six thousand, forty-two".