66144214 has 8 divisors (see below), whose sum is σ = 99446760. Its totient is φ = 32995296.

The previous prime is 66144167. The next prime is 66144223. The reversal of 66144214 is 41244166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37324 + ... + 39055.

It is an arithmetic number, because the mean of its divisors is an integer number (12430845).

Almost surely, 2^66144214 is an apocalyptic number.

66144214 is a deficient number, since it is larger than the sum of its proper divisors (33302546).

66144214 is a wasteful number, since it uses less digits than its factorization.

66144214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76814.

The product of its digits is 4608, while the sum is 28.

The square root of 66144214 is about 8132.9093195486. The cubic root of 66144214 is about 404.4181330804.

The spelling of 66144214 in words is "sixty-six million, one hundred forty-four thousand, two hundred fourteen".