663061575 has 48 divisors (see below), whose sum is σ = 1199030400. Its totient is φ = 320649600.

The previous prime is 663061561. The next prime is 663061577. The reversal of 663061575 is 575160366.

It is not a de Polignac number, because 663061575 - 2⁵ = 663061543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663061577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419136 + ... + 420714.

It is an arithmetic number, because the mean of its divisors is an integer number (24979800).

Almost surely, 2^663061575 is an apocalyptic number.

663061575 is a deficient number, since it is larger than the sum of its proper divisors (535968825).

663061575 is a wasteful number, since it uses less digits than its factorization.

663061575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2107 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 663061575 is about 25749.9820388287. The cubic root of 663061575 is about 872.0029489386.

The spelling of 663061575 in words is "six hundred sixty-three million, sixty-one thousand, five hundred seventy-five".