66340171 has 16 divisors (see below), whose sum is σ = 72714240. Its totient is φ = 60278400.

The previous prime is 66340163. The next prime is 66340177. The reversal of 66340171 is 17104366.

It is a cyclic number.

It is not a de Polignac number, because 66340171 - 2³ = 66340163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66340177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62596 + ... + 63646.

It is an arithmetic number, because the mean of its divisors is an integer number (4544640).

Almost surely, 2^66340171 is an apocalyptic number.

66340171 is a deficient number, since it is larger than the sum of its proper divisors (6374069).

66340171 is a wasteful number, since it uses less digits than its factorization.

66340171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 66340171 is about 8144.9475750308. The cubic root of 66340171 is about 404.8171119580.

The spelling of 66340171 in words is "sixty-six million, three hundred forty thousand, one hundred seventy-one".