66272211 has 6 divisors (see below), whose sum is σ = 95726540. Its totient is φ = 44181468.

The previous prime is 66272201. The next prime is 66272233. The reversal of 66272211 is 11227266.

66272211 is a `hidden beast` number, since 6 + 627 + 22 + 11 = 666.

It is not a de Polignac number, because 66272211 - 2⁷ = 66272083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66272201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3681781 + ... + 3681798.

Almost surely, 2^66272211 is an apocalyptic number.

66272211 is a deficient number, since it is larger than the sum of its proper divisors (29454329).

66272211 is a wasteful number, since it uses less digits than its factorization.

66272211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363585 (or 7363582 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 66272211 is about 8140.7745945948. The cubic root of 66272211 is about 404.6788308822.

Adding to 66272211 its reverse (11227266), we get a palindrome (77499477).

The spelling of 66272211 in words is "sixty-six million, two hundred seventy-two thousand, two hundred eleven".