66170107 has 2 divisors, whose sum is σ = 66170108. Its totient is φ = 66170106.

The previous prime is 66170101. The next prime is 66170113. The reversal of 66170107 is 70107166.

It is a balanced prime because it is at equal distance from previous prime (66170101) and next prime (66170113).

It is a cyclic number.

It is not a de Polignac number, because 66170107 - 2⁷ = 66169979 is a prime.

It is a super-4 number, since 4×66170107⁴ (a number of 32 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (66170101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33085053 + 33085054.

It is an arithmetic number, because the mean of its divisors is an integer number (33085054).

Almost surely, 2^66170107 is an apocalyptic number.

66170107 is a deficient number, since it is larger than the sum of its proper divisors (1).

66170107 is an equidigital number, since it uses as much as digits as its factorization.

66170107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 66170107 is about 8134.5010295654. The cubic root of 66170107 is about 404.4708977490.

The spelling of 66170107 in words is "sixty-six million, one hundred seventy thousand, one hundred seven".