16605651063 has 32 divisors (see below), whose sum is σ = 22843912896. Its totient is φ = 10724732928.

The previous prime is 16605651059. The next prime is 16605651091. The reversal of 16605651063 is 36015650661.

It is not a de Polignac number, because 16605651063 - 2² = 16605651059 is a prime.

It is a super-2 number, since 2×16605651063² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16605651043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8589645 + ... + 8591577.

It is an arithmetic number, because the mean of its divisors is an integer number (713872278).

Almost surely, 2^16605651063 is an apocalyptic number.

16605651063 is a deficient number, since it is larger than the sum of its proper divisors (6238261833).

16605651063 is a wasteful number, since it uses less digits than its factorization.

16605651063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643.

The product of its (nonzero) digits is 97200, while the sum is 39.

The spelling of 16605651063 in words is "sixteen billion, six hundred five million, six hundred fifty-one thousand, sixty-three".