660563113 has 8 divisors (see below), whose sum is σ = 762712832. Its totient is φ = 560359296.

The previous prime is 660563093. The next prime is 660563171. The reversal of 660563113 is 311365066.

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

It is not a de Polignac number, because 660563113 - 2⁵ = 660563081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660569113) 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 7 ways as a sum of consecutive naturals, for example, 485745 + ... + 487102.

It is an arithmetic number, because the mean of its divisors is an integer number (95339104).

Almost surely, 2^660563113 is an apocalyptic number.

It is an amenable number.

660563113 is a deficient number, since it is larger than the sum of its proper divisors (102149719).

660563113 is an equidigital number, since it uses as much as digits as its factorization.

660563113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972951.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 660563113 is about 25701.4223925447. The cubic root of 660563113 is about 870.9063145223.

It can be divided in two parts, 66056 and 3113, that added together give a square (69169 = 263²).

The spelling of 660563113 in words is "six hundred sixty million, five hundred sixty-three thousand, one hundred thirteen".