663951530206 has 16 divisors (see below), whose sum is σ = 1000556339328. Its totient is φ = 330433236000.

The previous prime is 663951530167. The next prime is 663951530219. The reversal of 663951530206 is 602035159366.

It is a happy number.

663951530206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2692116 + ... + 2928376.

It is an arithmetic number, because the mean of its divisors is an integer number (62534771208).

Almost surely, 2^663951530206 is an apocalyptic number.

663951530206 is a deficient number, since it is larger than the sum of its proper divisors (336604809122).

663951530206 is a wasteful number, since it uses less digits than its factorization.

663951530206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242787.

The product of its (nonzero) digits is 874800, while the sum is 46.

The spelling of 663951530206 in words is "six hundred sixty-three billion, nine hundred fifty-one million, five hundred thirty thousand, two hundred six".