66094271 has 4 divisors (see below), whose sum is σ = 66243912. Its totient is φ = 65944632.

The previous prime is 66094261. The next prime is 66094279. The reversal of 66094271 is 17249066.

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 66094271 - 2¹⁴ = 66077887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66094279) 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, 74156 + ... + 75041.

It is an arithmetic number, because the mean of its divisors is an integer number (16560978).

Almost surely, 2^66094271 is an apocalyptic number.

66094271 is a deficient number, since it is larger than the sum of its proper divisors (149641).

66094271 is a wasteful number, since it uses less digits than its factorization.

66094271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149640.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 66094271 is about 8129.8383132754. The cubic root of 66094271 is about 404.3163204940.

The spelling of 66094271 in words is "sixty-six million, ninety-four thousand, two hundred seventy-one".