66758714 has 8 divisors (see below), whose sum is σ = 109241568. Its totient is φ = 30344860.

The previous prime is 66758707. The next prime is 66758737. The reversal of 66758714 is 41785766.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1517222 + ... + 1517265.

It is an arithmetic number, because the mean of its divisors is an integer number (13655196).

Almost surely, 2^66758714 is an apocalyptic number.

66758714 is a deficient number, since it is larger than the sum of its proper divisors (42482854).

66758714 is a wasteful number, since it uses less digits than its factorization.

66758714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034500.

The product of its digits is 282240, while the sum is 44.

The square root of 66758714 is about 8170.6005899199. The cubic root of 66758714 is about 405.6666640410. Note that the first 5 decimals are identical.

The spelling of 66758714 in words is "sixty-six million, seven hundred fifty-eight thousand, seven hundred fourteen".