14781640066 has 8 divisors (see below), whose sum is σ = 22174306704. Its totient is φ = 7390204500.

The previous prime is 14781640061. The next prime is 14781640079. The reversal of 14781640066 is 66004618741.

14781640066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (14781640061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277140 + ... + 326143.

It is an arithmetic number, because the mean of its divisors is an integer number (2771788338).

Almost surely, 2^14781640066 is an apocalyptic number.

14781640066 is a deficient number, since it is larger than the sum of its proper divisors (7392666638).

14781640066 is a wasteful number, since it uses less digits than its factorization.

14781640066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615536.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 14781640066 in words is "fourteen billion, seven hundred eighty-one million, six hundred forty thousand, sixty-six".