660545304 has 16 divisors (see below), whose sum is σ = 1651363320. Its totient is φ = 220181760.

The previous prime is 660545299. The next prime is 660545309. The reversal of 660545304 is 403545066.

It is an interprime number because it is at equal distance from previous prime (660545299) and next prime (660545309).

It is a hoax number, since the sum of its digits (33) 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 (660545309) 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 3 ways as a sum of consecutive naturals, for example, 13761337 + ... + 13761384.

Almost surely, 2^660545304 is an apocalyptic number.

It is an amenable number.

660545304 is an abundant number, since it is smaller than the sum of its proper divisors (990818016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660545304 is a wasteful number, since it uses less digits than its factorization.

660545304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27522730 (or 27522726 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 660545304 is about 25701.0759307855. The cubic root of 660545304 is about 870.8984878112.

The spelling of 660545304 in words is "six hundred sixty million, five hundred forty-five thousand, three hundred four".