14945328666 has 24 divisors (see below), whose sum is σ = 32386296384. Its totient is φ = 4981045320.

The previous prime is 14945328647. The next prime is 14945328667. The reversal of 14945328666 is 66682354941.

It is a super-2 number, since 2×14945328666² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14945328667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73161 + ... + 187731.

It is an arithmetic number, because the mean of its divisors is an integer number (1349429016).

Almost surely, 2^14945328666 is an apocalyptic number.

14945328666 is an abundant number, since it is smaller than the sum of its proper divisors (17440967718).

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

14945328666 is a wasteful number, since it uses less digits than its factorization.

14945328666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121826 (or 121823 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 14945328666 in words is "fourteen billion, nine hundred forty-five million, three hundred twenty-eight thousand, six hundred sixty-six".