66807105 has 8 divisors (see below), whose sum is σ = 106891392. Its totient is φ = 35630448.

The previous prime is 66807071. The next prime is 66807119. The reversal of 66807105 is 50170866.

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

It is not a de Polignac number, because 66807105 - 2⁸ = 66806849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2226889 + ... + 2226918.

It is an arithmetic number, because the mean of its divisors is an integer number (13361424).

Almost surely, 2^66807105 is an apocalyptic number.

It is an amenable number.

66807105 is a deficient number, since it is larger than the sum of its proper divisors (40084287).

66807105 is a wasteful number, since it uses less digits than its factorization.

66807105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453815.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 66807105 is about 8173.5613413004. The cubic root of 66807105 is about 405.7646581109.

The spelling of 66807105 in words is "sixty-six million, eight hundred seven thousand, one hundred five".