16665373839973 has 8 divisors (see below), whose sum is σ = 16778510244000. Its totient is φ = 16552254613008.

The previous prime is 16665373839967. The next prime is 16665373840009. The reversal of 16665373839973 is 37993837356661.

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

It is a cyclic number.

It is not a de Polignac number, because 16665373839973 - 2³⁷ = 16527934886501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16665373839973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16665373839473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2344263 + ... + 6231076.

It is an arithmetic number, because the mean of its divisors is an integer number (2097313780500).

Almost surely, 2^{16665373839973} is an apocalyptic number.

It is an amenable number.

16665373839973 is a deficient number, since it is larger than the sum of its proper divisors (113136404027).

16665373839973 is a wasteful number, since it uses less digits than its factorization.

16665373839973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8588531.

The product of its digits is 2777664960, while the sum is 76.

The spelling of 16665373839973 in words is "sixteen trillion, six hundred sixty-five billion, three hundred seventy-three million, eight hundred thirty-nine thousand, nine hundred seventy-three".