66330699 has 8 divisors (see below), whose sum is σ = 88704720. Its totient is φ = 44088576.

The previous prime is 66330683. The next prime is 66330701. The reversal of 66330699 is 99603366.

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

It is not a de Polignac number, because 66330699 - 2⁴ = 66330683 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 66330699.

It is not an unprimeable number, because it can be changed into a prime (66330619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31794 + ... + 33815.

It is an arithmetic number, because the mean of its divisors is an integer number (11088090).

Almost surely, 2^66330699 is an apocalyptic number.

66330699 is a deficient number, since it is larger than the sum of its proper divisors (22374021).

66330699 is a wasteful number, since it uses less digits than its factorization.

66330699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65949.

The product of its (nonzero) digits is 157464, while the sum is 42.

The square root of 66330699 is about 8144.3660895124. The cubic root of 66330699 is about 404.7978445462.

The spelling of 66330699 in words is "sixty-six million, three hundred thirty thousand, six hundred ninety-nine".