66200271 has 4 divisors (see below), whose sum is σ = 88267032. Its totient is φ = 44133512.

The previous prime is 66200201. The next prime is 66200273. The reversal of 66200271 is 17200266.

It is a happy number.

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 66200271 - 2¹⁵ = 66167503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66200273) 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, 11033376 + ... + 11033381.

It is an arithmetic number, because the mean of its divisors is an integer number (22066758).

Almost surely, 2^66200271 is an apocalyptic number.

66200271 is a deficient number, since it is larger than the sum of its proper divisors (22066761).

66200271 is a wasteful number, since it uses less digits than its factorization.

66200271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22066760.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 66200271 is about 8136.3548963894. The cubic root of 66200271 is about 404.5323484922.

The spelling of 66200271 in words is "sixty-six million, two hundred thousand, two hundred seventy-one".