663533006 has 4 divisors (see below), whose sum is σ = 995299512. Its totient is φ = 331766502.

The previous prime is 663532943. The next prime is 663533027. The reversal of 663533006 is 600335366.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165883250 + ... + 165883253.

It is an arithmetic number, because the mean of its divisors is an integer number (248824878).

Almost surely, 2^663533006 is an apocalyptic number.

663533006 is a deficient number, since it is larger than the sum of its proper divisors (331766506).

663533006 is a wasteful number, since it uses less digits than its factorization.

663533006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331766505.

The product of its (nonzero) digits is 29160, while the sum is 32.

The square root of 663533006 is about 25759.1344186873. The cubic root of 663533006 is about 872.2095621448.

The spelling of 663533006 in words is "six hundred sixty-three million, five hundred thirty-three thousand, six".