66255714 has 24 divisors (see below), whose sum is σ = 164062080. Its totient is φ = 18930168.

The previous prime is 66255701. The next prime is 66255719. The reversal of 66255714 is 41755266.

It is a happy number.

66255714 is a `hidden beast` number, since 66 + 25 + 571 + 4 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66255719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262794 + ... + 263045.

It is an arithmetic number, because the mean of its divisors is an integer number (6835920).

Almost surely, 2^66255714 is an apocalyptic number.

66255714 is an abundant number, since it is smaller than the sum of its proper divisors (97806366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66255714 is a wasteful number, since it uses less digits than its factorization.

66255714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525854 (or 525851 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 66255714 is about 8139.7612987114. The cubic root of 66255714 is about 404.6452494831.

The spelling of 66255714 in words is "sixty-six million, two hundred fifty-five thousand, seven hundred fourteen".