16665053045403 has 64 divisors (see below), whose sum is σ = 25788772500480. Its totient is φ = 9375920750592.

The previous prime is 16665053045369. The next prime is 16665053045423. The reversal of 16665053045403 is 30454035056661.

It is not a de Polignac number, because 16665053045403 - 2¹⁰ = 16665053044379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16665053045423) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2092806900 + ... + 2092814862.

It is an arithmetic number, because the mean of its divisors is an integer number (402949570320).

Almost surely, 2^{16665053045403} is an apocalyptic number.

16665053045403 is a deficient number, since it is larger than the sum of its proper divisors (9123719455077).

16665053045403 is a wasteful number, since it uses less digits than its factorization.

16665053045403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12676.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 16665053045403 in words is "sixteen trillion, six hundred sixty-five billion, fifty-three million, forty-five thousand, four hundred three".