66382458 has 8 divisors (see below), whose sum is σ = 132764928. Its totient is φ = 22127484.

The previous prime is 66382451. The next prime is 66382517. The reversal of 66382458 is 85428366.

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

66382458 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (66382451) 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, 5531866 + ... + 5531877.

It is an arithmetic number, because the mean of its divisors is an integer number (16595616).

Almost surely, 2^66382458 is an apocalyptic number.

66382458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66382458 is a wasteful number, since it uses less digits than its factorization.

66382458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11063748.

The product of its digits is 276480, while the sum is 42.

The square root of 66382458 is about 8147.5430652437. The cubic root of 66382458 is about 404.9031074415.

The spelling of 66382458 in words is "sixty-six million, three hundred eighty-two thousand, four hundred fifty-eight".