66799514 has 8 divisors (see below), whose sum is σ = 101842068. Its totient is φ = 32852160.

The previous prime is 66799493. The next prime is 66799547. The reversal of 66799514 is 41599766.

It can be written as a sum of positive squares in 2 ways, for example, as 44662489 + 22137025 = 6683^2 + 4705^2 .

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

It is a Curzon number.

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, 273647 + ... + 273890.

Almost surely, 2^66799514 is an apocalyptic number.

66799514 is a deficient number, since it is larger than the sum of its proper divisors (35042554).

66799514 is a wasteful number, since it uses less digits than its factorization.

66799514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547600.

The product of its digits is 408240, while the sum is 47.

The square root of 66799514 is about 8173.0969650433. The cubic root of 66799514 is about 405.7492891060.

The spelling of 66799514 in words is "sixty-six million, seven hundred ninety-nine thousand, five hundred fourteen".