66304360 has 16 divisors (see below), whose sum is σ = 149184900. Its totient is φ = 26521728.

The previous prime is 66304349. The next prime is 66304361. The reversal of 66304360 is 6340366.

It can be written as a sum of positive squares in 2 ways, for example, as 66031876 + 272484 = 8126^2 + 522^2 .

It is not an unprimeable number, because it can be changed into a prime (66304361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828765 + ... + 828844.

Almost surely, 2^66304360 is an apocalyptic number.

It is an amenable number.

66304360 is an abundant number, since it is smaller than the sum of its proper divisors (82880540).

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

66304360 is a wasteful number, since it uses less digits than its factorization.

66304360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657620 (or 1657616 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 66304360 is about 8142.7489215866. The cubic root of 66304360 is about 404.7442575840.

The spelling of 66304360 in words is "sixty-six million, three hundred four thousand, three hundred sixty".