66287914 has 48 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 25518240.

The previous prime is 66287839. The next prime is 66287917. The reversal of 66287914 is 41978266.

It is not an unprimeable number, because it can be changed into a prime (66287917) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 184467 + ... + 184825.

It is an arithmetic number, because the mean of its divisors is an integer number (2633400).

Almost surely, 2^66287914 is an apocalyptic number.

66287914 is a deficient number, since it is larger than the sum of its proper divisors (60115286).

66287914 is a wasteful number, since it uses less digits than its factorization.

66287914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 488 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 66287914 is about 8141.7390034316. The cubic root of 66287914 is about 404.7107908332.

The spelling of 66287914 in words is "sixty-six million, two hundred eighty-seven thousand, nine hundred fourteen".