660555152 has 20 divisors (see below), whose sum is σ = 1294208460. Its totient is φ = 326565888.

The previous prime is 660555149. The next prime is 660555167. The reversal of 660555152 is 251555066.

660555152 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 55591936 + 604963216 = 7456^2 + 24596^2 .

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, 230513 + ... + 233360.

It is an arithmetic number, because the mean of its divisors is an integer number (64710423).

Almost surely, 2^660555152 is an apocalyptic number.

It is an amenable number.

660555152 is a deficient number, since it is larger than the sum of its proper divisors (633653308).

660555152 is a wasteful number, since it uses less digits than its factorization.

660555152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463970 (or 463964 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 660555152 is about 25701.2675173813. The cubic root of 660555152 is about 870.9028158342.

The spelling of 660555152 in words is "six hundred sixty million, five hundred fifty-five thousand, one hundred fifty-two".