16616553005 has 32 divisors (see below), whose sum is σ = 21630139776. Its totient is φ = 12181641984.

The previous prime is 16616553001. The next prime is 16616553059. The reversal of 16616553005 is 50035561661.

It is a cyclic number.

It is not a de Polignac number, because 16616553005 - 2² = 16616553001 is a prime.

It is a super-2 number, since 2×16616553005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16616553005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16616553001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5388194 + ... + 5391276.

It is an arithmetic number, because the mean of its divisors is an integer number (675941868).

Almost surely, 2^16616553005 is an apocalyptic number.

It is an amenable number.

16616553005 is a deficient number, since it is larger than the sum of its proper divisors (5013586771).

16616553005 is a wasteful number, since it uses less digits than its factorization.

16616553005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677.

The product of its (nonzero) digits is 81000, while the sum is 38.

The spelling of 16616553005 in words is "sixteen billion, six hundred sixteen million, five hundred fifty-three thousand, five".