16606066649 has 8 divisors (see below), whose sum is σ = 16968182400. Its totient is φ = 16244317456.

The previous prime is 16606066643. The next prime is 16606066651. The reversal of 16606066649 is 94666060661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16606066649 is a prime.

It is a super-2 number, since 2×16606066649² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16606066597 and 16606066606.

It is not an unprimeable number, because it can be changed into a prime (16606066643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 962 + ... + 182244.

It is an arithmetic number, because the mean of its divisors is an integer number (2121022800).

Almost surely, 2^16606066649 is an apocalyptic number.

It is an amenable number.

16606066649 is a deficient number, since it is larger than the sum of its proper divisors (362115751).

16606066649 is a wasteful number, since it uses less digits than its factorization.

16606066649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183279.

The product of its (nonzero) digits is 1679616, while the sum is 50.

The spelling of 16606066649 in words is "sixteen billion, six hundred six million, sixty-six thousand, six hundred forty-nine".