663044607 has 12 divisors (see below), whose sum is σ = 958410024. Its totient is φ = 441716400.

The previous prime is 663044593. The next prime is 663044611. The reversal of 663044607 is 706440366.

663044607 is a `hidden beast` number, since 6 + 6 + 3 + 0 + 44 + 607 = 666.

It is not a de Polignac number, because 663044607 - 2¹¹ = 663042559 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663044677) 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 11 ways as a sum of consecutive naturals, for example, 12328 + ... + 38445.

It is an arithmetic number, because the mean of its divisors is an integer number (79867502).

Almost surely, 2^663044607 is an apocalyptic number.

663044607 is a deficient number, since it is larger than the sum of its proper divisors (295365417).

663044607 is a wasteful number, since it uses less digits than its factorization.

663044607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52230 (or 52227 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 663044607 is about 25749.6525607628. The cubic root of 663044607 is about 871.9955105785.

The spelling of 663044607 in words is "six hundred sixty-three million, forty-four thousand, six hundred seven".