66830107 has 4 divisors (see below), whose sum is σ = 67318056. Its totient is φ = 66342160.

The previous prime is 66830063. The next prime is 66830117. The reversal of 66830107 is 70103866.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66830107 - 2¹¹ = 66828059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66830117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243769 + ... + 244042.

It is an arithmetic number, because the mean of its divisors is an integer number (16829514).

Almost surely, 2^66830107 is an apocalyptic number.

66830107 is a deficient number, since it is larger than the sum of its proper divisors (487949).

66830107 is a wasteful number, since it uses less digits than its factorization.

66830107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487948.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 66830107 is about 8174.9683179814. The cubic root of 66830107 is about 405.8112216598.

The spelling of 66830107 in words is "sixty-six million, eight hundred thirty thousand, one hundred seven".