66128314 has 8 divisors (see below), whose sum is σ = 113362848. Its totient is φ = 28340700.

The previous prime is 66128311. The next prime is 66128329. The reversal of 66128314 is 41382166.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (66128311) 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, 2361712 + ... + 2361739.

It is an arithmetic number, because the mean of its divisors is an integer number (14170356).

Almost surely, 2^66128314 is an apocalyptic number.

66128314 is a deficient number, since it is larger than the sum of its proper divisors (47234534).

66128314 is a wasteful number, since it uses less digits than its factorization.

66128314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4723460.

The product of its digits is 6912, while the sum is 31.

The square root of 66128314 is about 8131.9317508203. The cubic root of 66128314 is about 404.3857252892.

The spelling of 66128314 in words is "sixty-six million, one hundred twenty-eight thousand, three hundred fourteen".