66714474 has 8 divisors (see below), whose sum is σ = 133428960. Its totient is φ = 22238156.

The previous prime is 66714451. The next prime is 66714493. The reversal of 66714474 is 47441766.

It is a happy number.

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

66714474 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5559534 + ... + 5559545.

It is an arithmetic number, because the mean of its divisors is an integer number (16678620).

Almost surely, 2^66714474 is an apocalyptic number.

66714474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66714474 is a wasteful number, since it uses less digits than its factorization.

66714474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119084.

The product of its digits is 112896, while the sum is 39.

The square root of 66714474 is about 8167.8928739302. The cubic root of 66714474 is about 405.5770344983.

The spelling of 66714474 in words is "sixty-six million, seven hundred fourteen thousand, four hundred seventy-four".