66867107 has 8 divisors (see below), whose sum is σ = 68612016. Its totient is φ = 65130912.

The previous prime is 66867091. The next prime is 66867109. The reversal of 66867107 is 70176866.

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

It is a cyclic number.

It is not a de Polignac number, because 66867107 - 2⁴ = 66867091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66867109) 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 7 ways as a sum of consecutive naturals, for example, 15113 + ... + 19029.

It is an arithmetic number, because the mean of its divisors is an integer number (8576502).

Almost surely, 2^66867107 is an apocalyptic number.

66867107 is a deficient number, since it is larger than the sum of its proper divisors (1744909).

66867107 is a wasteful number, since it uses less digits than its factorization.

66867107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 66867107 is about 8177.2310105561. The cubic root of 66867107 is about 405.8860993147.

The spelling of 66867107 in words is "sixty-six million, eight hundred sixty-seven thousand, one hundred seven".