16606684305 has 12 divisors (see below), whose sum is σ = 28784919540. Its totient is φ = 8856898272.

The previous prime is 16606684301. The next prime is 16606684309. The reversal of 16606684305 is 50348660661.

16606684305 is a `hidden beast` number, since 1 + 6 + 606 + 6 + 8 + 4 + 30 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (16606684301) and next prime (16606684309).

It can be written as a sum of positive squares in 2 ways, for example, as 11721093696 + 4885590609 = 108264^2 + 69897^2 .

It is not a de Polignac number, because 16606684305 - 2² = 16606684301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 369037429 = 16606684305 / (1 + 6 + 6 + 0 + 6 + 6 + 8 + 4 + 3 + 0 + 5).

It is not an unprimeable number, because it can be changed into a prime (16606684301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184518670 + ... + 184518759.

It is an arithmetic number, because the mean of its divisors is an integer number (2398743295).

Almost surely, 2^16606684305 is an apocalyptic number.

16606684305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16606684305 is a deficient number, since it is larger than the sum of its proper divisors (12178235235).

16606684305 is a wasteful number, since it uses less digits than its factorization.

16606684305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369037440 (or 369037437 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 16606684305 in words is "sixteen billion, six hundred six million, six hundred eighty-four thousand, three hundred five".