663606067 has 8 divisors (see below), whose sum is σ = 703414800. Its totient is φ = 623883264.

The previous prime is 663606059. The next prime is 663606079. The reversal of 663606067 is 760606366.

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

It is a cyclic number.

It is not a de Polignac number, because 663606067 - 2³ = 663606059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663606767) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5217 + ... + 36802.

It is an arithmetic number, because the mean of its divisors is an integer number (87926850).

Almost surely, 2^663606067 is an apocalyptic number.

663606067 is a deficient number, since it is larger than the sum of its proper divisors (39808733).

663606067 is a wasteful number, since it uses less digits than its factorization.

663606067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42965.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 663606067 is about 25760.5525367761. The cubic root of 663606067 is about 872.2415736969.

It can be divided in two parts, 66360 and 6067, that added together give a palindrome (72427).

The spelling of 663606067 in words is "six hundred sixty-three million, six hundred six thousand, sixty-seven".