16605510650 has 48 divisors (see below), whose sum is σ = 31242494400. Its totient is φ = 6565829760.

The previous prime is 16605510611. The next prime is 16605510667. The reversal of 16605510650 is 5601550661.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16605510650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3185246 + ... + 3190454.

It is an arithmetic number, because the mean of its divisors is an integer number (650885300).

Almost surely, 2^16605510650 is an apocalyptic number.

16605510650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16605510650 is a deficient number, since it is larger than the sum of its proper divisors (14636983750).

16605510650 is a wasteful number, since it uses less digits than its factorization.

16605510650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943 (or 5938 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 16605510650 in words is "sixteen billion, six hundred five million, five hundred ten thousand, six hundred fifty".