66413306 has 8 divisors (see below), whose sum is σ = 103055220. Its totient is φ = 32061568.

The previous prime is 66413299. The next prime is 66413357. The reversal of 66413306 is 60331466.

It can be written as a sum of positive squares in 2 ways, for example, as 64657681 + 1755625 = 8041^2 + 1325^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

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, 572471 + ... + 572586.

Almost surely, 2^66413306 is an apocalyptic number.

66413306 is a deficient number, since it is larger than the sum of its proper divisors (36641914).

66413306 is a wasteful number, since it uses less digits than its factorization.

66413306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145088.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 66413306 is about 8149.4359314004. The cubic root of 66413306 is about 404.9658173660.

The spelling of 66413306 in words is "sixty-six million, four hundred thirteen thousand, three hundred six".