66235214 has 4 divisors (see below), whose sum is σ = 99352824. Its totient is φ = 33117606.

The previous prime is 66235207. The next prime is 66235219. The reversal of 66235214 is 41253266.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41253266 = 2 ⋅20626633.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66235219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16558802 + ... + 16558805.

It is an arithmetic number, because the mean of its divisors is an integer number (24838206).

Almost surely, 2^66235214 is an apocalyptic number.

66235214 is a deficient number, since it is larger than the sum of its proper divisors (33117610).

66235214 is a wasteful number, since it uses less digits than its factorization.

66235214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33117609.

The product of its digits is 8640, while the sum is 29.

The square root of 66235214 is about 8138.5019506049. The cubic root of 66235214 is about 404.6035117834.

The spelling of 66235214 in words is "sixty-six million, two hundred thirty-five thousand, two hundred fourteen".