66291714 has 48 divisors (see below), whose sum is σ = 148082688. Its totient is φ = 21422016.

The previous prime is 66291713. The next prime is 66291737. The reversal of 66291714 is 41719266.

66291714 is a `hidden beast` number, since 6 + 629 + 17 + 14 = 666.

It is not an unprimeable number, because it can be changed into a prime (66291713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107134 + ... + 107750.

It is an arithmetic number, because the mean of its divisors is an integer number (3085056).

Almost surely, 2^66291714 is an apocalyptic number.

66291714 is an abundant number, since it is smaller than the sum of its proper divisors (81790974).

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

66291714 is a wasteful number, since it uses less digits than its factorization.

66291714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 796 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 66291714 is about 8141.9723654653. The cubic root of 66291714 is about 404.7185241263.

The spelling of 66291714 in words is "sixty-six million, two hundred ninety-one thousand, seven hundred fourteen".