16606622650 has 24 divisors (see below), whose sum is σ = 30896693244. Its totient is φ = 6640848000.

The previous prime is 16606622639. The next prime is 16606622731. The reversal of 16606622650 is 5622660661.

It can be written as a sum of positive squares in 6 ways, for example, as 7512902329 + 9093720321 = 86677^2 + 95361^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 149550 + ... + 235750.

Almost surely, 2^16606622650 is an apocalyptic number.

16606622650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16606622650 is a deficient number, since it is larger than the sum of its proper divisors (14290070594).

16606622650 is a wasteful number, since it uses less digits than its factorization.

16606622650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90066 (or 90061 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 16606622650 in words is "sixteen billion, six hundred six million, six hundred twenty-two thousand, six hundred fifty".