14666303374921 has 27 divisors (see below), whose sum is σ = 16853305215943. Its totient is φ = 12752464757120.

The previous prime is 14666303374909. The next prime is 14666303374949. The reversal of 14666303374921 is 12947330366641.

The square root of 14666303374921 is 3829661.

It is a perfect power (a square), and thus also a powerful number.

14666303374921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8874887855625 + 5791415519296 = 2979075^2 + 2406536^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14666303374921 is a prime.

It is a super-2 number, since 2×14666303374921² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14666303374981) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 968896665 + ... + 968911801.

Almost surely, 2^{14666303374921} is an apocalyptic number.

14666303374921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14666303374921 is the 3829661-st square number.

14666303374921 is the 1914831-st centered octagonal number.

It is an amenable number.

14666303374921 is a deficient number, since it is larger than the sum of its proper divisors (2187001841022).

14666303374921 is an frugal number, since it uses more digits than its factorization.

14666303374921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30342 (or 15171 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 55.

The spelling of 14666303374921 in words is "fourteen trillion, six hundred sixty-six billion, three hundred three million, three hundred seventy-four thousand, nine hundred twenty-one".