66679458 has 8 divisors (see below), whose sum is σ = 133358928. Its totient is φ = 22226484.

The previous prime is 66679447. The next prime is 66679463. The reversal of 66679458 is 85497666.

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

66679458 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66679458.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5556616 + ... + 5556627.

It is an arithmetic number, because the mean of its divisors is an integer number (16669866).

Almost surely, 2^66679458 is an apocalyptic number.

66679458 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.

66679458 is a wasteful number, since it uses less digits than its factorization.

66679458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113248.

The product of its digits is 2177280, while the sum is 51.

The square root of 66679458 is about 8165.7490777025. The cubic root of 66679458 is about 405.5060645375.

The spelling of 66679458 in words is "sixty-six million, six hundred seventy-nine thousand, four hundred fifty-eight".