16606203423645 has 64 divisors (see below), whose sum is σ = 29022154850304. Its totient is φ = 8041279518720.

The previous prime is 16606203423577. The next prime is 16606203423703. The reversal of 16606203423645 is 54632430260661.

It is not a de Polignac number, because 16606203423645 - 2¹³ = 16606203415453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16606203423594 and 16606203423603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 878021709 + ... + 878040621.

It is an arithmetic number, because the mean of its divisors is an integer number (453471169536).

Almost surely, 2^{16606203423645} is an apocalyptic number.

16606203423645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16606203423645 is a deficient number, since it is larger than the sum of its proper divisors (12415951426659).

16606203423645 is a wasteful number, since it uses less digits than its factorization.

16606203423645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25402.

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 16606203423645 in words is "sixteen trillion, six hundred six billion, two hundred three million, four hundred twenty-three thousand, six hundred forty-five".