66314266 has 4 divisors (see below), whose sum is σ = 99471402. Its totient is φ = 33157132.

The previous prime is 66314257. The next prime is 66314293. The reversal of 66314266 is 66241366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66241366 = 2 ⋅33120683.

It can be written as a sum of positive squares in only one way, i.e., 65853225 + 461041 = 8115^2 + 679^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16578565 + ... + 16578568.

Almost surely, 2^66314266 is an apocalyptic number.

66314266 is a deficient number, since it is larger than the sum of its proper divisors (33157136).

66314266 is a wasteful number, since it uses less digits than its factorization.

66314266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33157135.

The product of its digits is 31104, while the sum is 34.

The square root of 66314266 is about 8143.3571701111. The cubic root of 66314266 is about 404.7644131060.

Subtracting from 66314266 its reverse (66241366), we obtain a square (72900 = 270²).

The spelling of 66314266 in words is "sixty-six million, three hundred fourteen thousand, two hundred sixty-six".