66754414 has 8 divisors (see below), whose sum is σ = 100349280. Its totient is φ = 33304656.

The previous prime is 66754399. The next prime is 66754417. The reversal of 66754414 is 41445766.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66754417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35119 + ... + 36970.

It is an arithmetic number, because the mean of its divisors is an integer number (12543660).

Almost surely, 2^66754414 is an apocalyptic number.

66754414 is a deficient number, since it is larger than the sum of its proper divisors (33594866).

66754414 is a wasteful number, since it uses less digits than its factorization.

66754414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72554.

The product of its digits is 80640, while the sum is 37.

The square root of 66754414 is about 8170.3374471315. The cubic root of 66754414 is about 405.6579540464.

The spelling of 66754414 in words is "sixty-six million, seven hundred fifty-four thousand, four hundred fourteen".