16666134805814 has 32 divisors (see below), whose sum is σ = 27298448785440. Its totient is φ = 7584625043712.

The previous prime is 16666134805777. The next prime is 16666134805841. The reversal of 16666134805814 is 41850843166661.

It is a super-3 number, since 3×16666134805814³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5784917 + ... + 8172975.

It is an arithmetic number, because the mean of its divisors is an integer number (853076524545).

Almost surely, 2^{16666134805814} is an apocalyptic number.

16666134805814 is a deficient number, since it is larger than the sum of its proper divisors (10632313979626).

16666134805814 is a wasteful number, since it uses less digits than its factorization.

16666134805814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391824.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 16666134805814 in words is "sixteen trillion, six hundred sixty-six billion, one hundred thirty-four million, eight hundred five thousand, eight hundred fourteen".