66430214 has 16 divisors (see below), whose sum is σ = 101114352. Its totient is φ = 32729088.

The previous prime is 66430211. The next prime is 66430229. The reversal of 66430214 is 41203466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66430211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42857 + ... + 44379.

It is an arithmetic number, because the mean of its divisors is an integer number (6319647).

Almost surely, 2^66430214 is an apocalyptic number.

66430214 is a deficient number, since it is larger than the sum of its proper divisors (34684138).

66430214 is a wasteful number, since it uses less digits than its factorization.

66430214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 66430214 is about 8150.4732377942. The cubic root of 66430214 is about 405.0001808667. Note that the first 3 decimals are identical.

The spelling of 66430214 in words is "sixty-six million, four hundred thirty thousand, two hundred fourteen".