660675530 has 8 divisors (see below), whose sum is σ = 1189215972. Its totient is φ = 264270208.

The previous prime is 660675523. The next prime is 660675553. The reversal of 660675530 is 35576066.

660675530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 528954001 + 131721529 = 22999^2 + 11477^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33033767 + ... + 33033786.

Almost surely, 2^660675530 is an apocalyptic number.

660675530 is a deficient number, since it is larger than the sum of its proper divisors (528540442).

660675530 is a wasteful number, since it uses less digits than its factorization.

660675530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66067560.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 660675530 is about 25703.6092796323. The cubic root of 660675530 is about 870.9557163735.

The spelling of 660675530 in words is "six hundred sixty million, six hundred seventy-five thousand, five hundred thirty".